Boston turns into a crime scene. This self-guided murder mystery scavenger hunt sends you through classic Boston sights, solving Rex King’s 1926 whodunnit as you walk. The format is simple and flexible, with a 1.3-mile route you tackle at your own pace and a private experience just for your group.

I especially like how the game pushes you to slow down and read the city’s public history on the sidewalk, not in a stuffy room. You also get the fun of group participation from one purchase, with your phone and browser doing the heavy lifting. One drawback to consider: the whole experience depends on clear phone setup, and one earlier user said the instructions were not easy to follow, while another felt the story of Rex King was lighter than expected.

Key things to know before you go

• Solve outdoors as you walk, covering about 1.3 miles at your own pace in roughly 3 hours.
• Passcodes come from free historical markers, so you will be reading what’s already on-site.
• Stops include Boston Common, Granary Burying Ground, Old State House, and Old City Hall, plus more on the route.
• One mobile game for your whole group, so friends can play together with a single purchase.
• You need a smart phone and a web browser to run the hunt, so plan for data or Wi-Fi.

A murder mystery hunt that turns plaques into clues

This is not a museum tour where someone talks at you for three hours. It is a phone-driven scavenger hunt built around a story: you are tasked with solving the murder of silent movie director Rex King, who was visiting Boston while filming on location in 1926. The game is played while you are walking, so the city is not just scenery. It is part of the puzzle.

At each stop, you hunt for a passcode that opens the next set of clues. The catch, and the clever part, is that the passcodes are meant to be found on readily accessible historical markers. So you are not searching for something hidden in a bush or chasing an elaborate prop. You are reading what Boston already puts in front of your face, then using those clues to keep moving.

I also like that the experience is explicitly designed for your group to collaborate. Even if you are not a trivia ace, the puzzle-style format gives everyone a chance to participate, and it keeps the energy up while you walk. It is a fun way to see the most visited parts of Boston without doing the usual hurry-and-photos routine.

That said, keep your expectations aligned. There is no promise of in-depth storytelling or deep commentary about Rex King himself. In practice, the hunt leans toward quick puzzle prompts plus what you can pull from the markers. If you want a detailed biography delivered live by a guide, this may not feel like that.

Where the hunt starts at 139 Tremont St

Your start point is 139 Tremont St, Boston, MA 02111, and the activity ends back at the same meeting point. This matters more than you might think. It keeps the route tidy, and it helps you plan dinner afterward without needing to re-route across town.

The meeting area is near transit and major attractions, so you can plug this into a bigger Boston itinerary with less friction. And because it is a private activity, you are not juggling a crowd trying to read clues at the same time. You move together, stop when you need to, and take breaks when the group wants a breather.

The whole hunt is listed at about 3 hours, covering roughly 1.3 miles (about 2 kilometers). That distance sounds short, but with puzzle stops, it feels like a real “walk and think” session. You will be stopping, scanning markers, and checking your phone between locations.

If you are planning this on a day with lots of other commitments, leave breathing room. The biggest time risk is not walking speed. It is tech setup and reading time at each marker, especially if you get briefly stuck.

Boston Commons: the easiest way to get your bearings fast

Your route includes Boston Commons, and one big practical tip that comes through in the experience is: get the instructions going before you start moving. One positive account praised reading directions before beginning at Boston Common, then finding the game easy to follow from there.

That makes sense. The hunt depends on your phone and web browser, and the early steps set you up for how to find the passcodes and move through the next clue set. If you start walking first and figure out the app later, you can waste time.

In a place like Boston Common, it is smart to begin with a calm moment. Stand, read the first prompt, and confirm you are on the correct page. Then start scanning the nearby historical markers for the passcode. Once you have that rhythm, everything clicks faster.

Also, Boston Common is a perfect setting for this kind of game because it is visually open and easy to navigate. You are not trying to solve puzzles in a maze of side streets. It is a big, classic landmark zone where you can focus on the clues and still see the city around you.

Granary Burying Ground: where clues feel extra real

Stop 1 is Granary Burying Ground, one of Boston’s most iconic cemeteries. This is a strong choice for a murder mystery hunt, because the atmosphere matches the premise, and the site is packed with public historical markers that are designed to be read.

From a puzzle standpoint, cemeteries and memorial areas work well because they give you something concrete to look at. You are not wandering randomly. You are directed to search for a passcode you can find on accessible historical signage, then use it to unlock the next part of the story.

One practical upside here: Granary Burying Ground is a place where you can take your time without the usual city-pressure feeling. You can slow down, trade ideas with your group, and keep the game moving at a pace that feels right for you.

One warning, though, is not specific to Granary Burying Ground but to the whole hunt: if your phone is slow, your browser glitches, or you hit a technical snag, your momentum drops. If you do this on a day when your battery is low, bring a power bank. The game asks you to check your phone at each stop.

Old City Hall and Old State House: classic downtown puzzle fuel

Your hunt includes Old City Hall and the Old State House as part of the historical stop mix. These are the kind of places that turn “I’ve seen that” into “wait, I did not notice that.”

Here is what you get from this style of walking game: you are not just learning dates in a lecture. You are using those facts as puzzle inputs. That means the historical marker information is actively useful, and it sticks better because you needed it to move forward.

At these stops, you will be looking for the passcode that unlocks the next clues. The experience is designed so you can assemble your progress through reading, not guessing. That is also why the hunt is great for mixed groups. One person can read closely, another can type, and someone else can keep the group moving while you check the clues.

If you are sensitive to quiet settings, remember that historic sites sometimes have rules about noise and respect. The game is self-paced, so you can slow down and keep your volume in check while you read markers.

How the phone game works, from passcodes to the final solution

The requirement is straightforward: you need a smart phone and a web browser. The tour uses a mobile ticket, and you will use your phone to navigate the hunt at your own pace.

You typically move in this loop:

1) Arrive at a stop

2) Find a historical marker with the needed passcode

3) Enter it on your phone to unlock the next set of clues

4) Continue to the next location on the route

After you reach the full set of stops, you assemble your clues, submit your response, and find out the solution. The game is designed around about 10 stops of historical significance on the 1.3-mile path.

One detail worth emphasizing: the experience does not position itself as a guide-led lecture. It is more like a structured scavenger hunt with narrative framing. That is why the historical markers matter so much. If you treat the markers like trivia props, you may feel the story is thin. If you read them carefully, you will get more satisfaction.

Also, be aware of tech dependency. One earlier user said the experience was not easy to use because instructions were not clear at the time they needed it. Another said it felt more like Boston history questions than the Rex King murder story. Those are not guaranteed outcomes, but they are real possibilities. Plan for patience, and read the start instructions before you begin walking.

Pace and logistics: walking 1.3 miles in about 3 hours

The walk is about 1.3 miles (2 km), and the experience is set at roughly 3 hours. That timing is ideal for visitors who want to see a cluster of landmarks, not just sprint between them.

Your physical level should be moderate. Translation: you are walking a small distance, but you are walking with stops. You will need to stand and read at each location, and you will likely move at a thoughtful pace with the group.

The game is self-paced, so you can speed up or linger. That flexibility is one of the best parts, especially if your group includes people with different energy levels. You can keep the pace comfortable without worrying about a guide waiting at the curb.

And because the experience is private, your group does not get diluted into a big crowd. You can ask each other questions, compare passcodes, and decide together when it is time to move on.

What you learn: Boston facts, puzzle skills, and a murder plot wrapper

This is where you should set expectations carefully. The hunt is about solving Rex King’s murder, but the method you use is grounded in Boston’s public history markers.

So you will learn in two ways:

• Through the puzzle itself, which pushes you to read specific signage closely
• Through the general historical context found on those markers

If your ideal day is deep, narrative history led by a person, you may feel the hunt is light. One earlier user specifically said they expected to learn more about Rex King’s life and the murder, and instead got more Boston history questions until the end.

On the other hand, if you like learning through doing, this format can be surprisingly effective. You are not just consuming facts. You are applying them. That gives you a stronger sense of place.

In positive accounts, people highlighted that they walked around, learned a few things, laughed, and involved everyone in solving the clues. That is exactly what this design is aiming for.

Value and who should book this Boston scavenger hunt

I would call this a good value if you want an active, low-pressure way to see central Boston while staying engaged. It covers famous landmarks in a compact area. It gives your group something to do besides scroll maps and ask, Where are we going next?

Because it is private, it can also feel like a better deal for small groups than more formal group tours. One purchase can support the whole group playing together, which is helpful if you have friends in town at the same time.

But it is not the best fit if you want:

• a guide-led, in-depth historical commentary
• a heavy focus on Rex King’s backstory throughout the hunt
• a fully foolproof experience if you prefer paper-based instructions or you hate browser-based setups

If you are comfortable using your phone and can handle a little troubleshooting, you will likely enjoy the format. If not, consider downloading ahead of time, carrying a charger, and testing your connection before you start.

Should you book Mysteries on the Move in Boston?

Book it if you want a fun, self-paced way to explore Boston Common, Granary Burying Ground, and the Old State House area while solving a murder mystery with friends. It is especially appealing if your group enjoys puzzles, reading plaques, and walking around at an unhurried tempo.

Skip it if you need deep, narrative history or you strongly prefer a live guide. Also skip or plan extra carefully if you know your phone setup is usually a hassle, because the hunt is dependent on a smart phone and a web browser.

If you do book, do yourself a favor: read the start instructions before you begin, keep your battery charged, and treat the historical markers as part of the story. That mindset helps you get the most out of the hunt.

FAQ

How long is the Boston scavenger hunt?

It is listed at about 3 hours.

How much walking is involved?

The course is about 1.3 miles (about 2 kilometers).

What do I need to play?

You need a smart phone and a web browser.

Is this a guided tour with a person talking the whole time?

No, it is a self-paced, phone-based murder mystery hunt, and it does not include in-depth historical commentary.

Where does the hunt start and end?

It starts at 139 Tremont St, Boston, MA 02111, and ends back at the same meeting point.

Which stops are included?

The hunt includes Boston Commons, Granary Burying Ground, Old State House, and Old City Hall, plus other historical stops on the route.

Is it private?

Yes. It is private, so only your group participates.

Is it suitable if I have moderate fitness?

It says travelers should have a moderate physical fitness level.

When is it available?

It lists daily hours from 12:00 AM to 11:30 PM within the listed date range.

What is the cancellation policy?

This experience is non-refundable and cannot be changed for any reason.