Sherlock Holmes Adventure: Solve Professor Moriarty's Mysterious Challenge Across London

Embark on a thrilling Sherlock Holmes adventure in London. Solve Professor Moriarty’s mysterious challenge, uncover his safehouse, and unlock an irresistible offer. Get ready to sleuth, solve puzzles, and unravel riddles in this real-world game. Team up with 2-5 players and enjoy built-in break points for food and drink. Don’t miss out on this slam dunk experience!

Duration: 4 hours
Cancellation: 24 hours
Highlights
  • Marylebone - Engage in a 3-4 hour immersive adventure through Marylebone, London. Navigate the city by deciphering a series of clues sent to your phone, in a treasure hunt-style quest. Become part of the narrative as you discover hidden spots, solve riddles, and tackle puzzles. Take breaks for food and drinks at designated intervals. Start your…
What's Included
  • Immersive 3-4 hour adventure in Marylebone, London
  • Engage with the story through texts and calls
  • Hands-on puzzles for teams
  • Real-world interactions with characters
  • Story evolves with your decisions
  • Prizes for successful teams
  • Enjoy optional pub and cafe breaks
  • Flexible ticketing allows date and time changes
Additional Information

Professor James Moriarty cordially requests your presence to take part in a unique intellectual challenge he meticulously planned. Should you succeed, he assures you of an irresistible proposition…
Embark on an urban adventure game reflecting the Sherlock Holmes universe. Decode a series of puzzles delivered to your phone as you try to reveal the…

Location
The Marylebone
Marylebone High Street
Follow instructions sent via mobile...
Cancellation Policy

For a full refund, cancel at least 24 hours before the scheduled departure time.

Customer Ratings
4.8
(432 Ratings)
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K7412avannamariav
Oct 13, 2025
Moriarty’s Game - What a brilliant way to spend a day out in London. It was so much fun, especially when you realise that everyone around you seems to be doing it too! The clues were great and it was well thought out and we had the weather on our side, it was a beautiful day. I would 100% recommend.
Review provided by Tripadvisor
Sjtrooper
Sep 13, 2025
Moriarty’s Game challenge - A really fantastic and fun way to spend a few hours exploring parts of the city that you wouldn’t otherwise have known. The clues can be challenging but are achievable. We had an absolutely fantastic experience.
Review provided by Tripadvisor
Alinapavelgh
Aug 31, 2025
Amazing day out in London - I’ve done a few treasure hunts with HiddenCity and I can honestly say they’re amazing. The games are thoughtfully put together and the trails take you to see parts of London which you’ve not seen before.
Review provided by Tripadvisor
623vanessaw
Aug 31, 2025
Great day in London - Such a great day and taken to some interesting and lovely spots in London. I don’t really know much about the story of Sherlock Holmes but I still managed to solve the puzzles with my partner, who is a Holmes fan 😊. We will definitely be booking another Hidden City adventure. A great day in London 👍🏻
Review provided by Tripadvisor
F223cpchrisb
Aug 29, 2025
Elementary, pure brilliance - One of the best days I’ve ever had Got truly immersed in the story, the interactivity with the characters and the clever cryptic clues Anyone who wants a great 3hr activity in London, do this!
Review provided by Tripadvisor
Wobbleberryse
Aug 28, 2025
Playing Cat and Mouse with Professor Moriarty! - Wow! What can I say? This was one of the most immersive experiences I’ve ever done. From the very first clue, we found ourselves second-guessing everyone loitering on corners, convinced we were being watched. The puzzles were pitched perfectly – not so hard that you constantly get stuck, but clever and challenging enough to keep you fully engaged. I loved how the use of texts and phone calls added an extra layer of variety and realism, making it feel like we’d genuinely been drawn into Moriarty’s world. The pubs along the route were welcoming, with staff who played their parts brilliantly and kept the atmosphere alive. It was all so slickly put together, and above all, so much fun! If you enjoy a mix of problem-solving, storytelling, and exploring the city in a completely new way (I lived in central London for 8 years and saw bits I didn’t know existed!) this is an absolute must. I can’t wait to book the next one!
Review provided by Tripadvisor
Z8824shruthd
Aug 28, 2025
Family fun - Fantastic experience, would highly recommend for anyone with 12 year plus kids although great for adults too. Discovered new places in London and had fun along the way. Would definitely do another one.
Review provided by Tripadvisor
Laurab1624
Aug 28, 2025
Fun for all the family - The game is well thought out and not too difficult (can be done with children) Great fun and a brilliant way to see hidden treasures of London that we didn’t know existed. I would highly recommend and am booking up another one soon
Review provided by Tripadvisor
Shayaraf2018
Aug 27, 2025
Epic reason to walk around London - Very fun, thought-provoking. Loved exploring new parts of London, and some amazing choices of pubs along the way! The items of importance for clues were great and the messaging made it an easy way to take part in the game.
Review provided by Tripadvisor
Leonard
Oct 28, 2025
Shameful profiteering! - This is my third Hidden City trail.. and unfortunately for me the least enjoyable. Previous trails (enchanted mirror and Cheshire Cat) were much clearer in direction and included some very good rest spots.. This one had us misled right from the offset.. The reason for the low score is the pricing ! Unsure as to why the price fluctuates based on the day of the week/half term etc. since it’s a pre-recorded set of clues and calls not actually live!! Seems like profiteering which is a shame
Review provided by Tripadvisor
From $39
up to 15 guests
2 - Adult
Cancellation: Free cancellation up to 24 hours before the start of your experience (local time).