--- title: Moriarty's Game: The Professor's Invitation by HiddenCity lang: en type: tour city: London country: United Kingdom price: 35 currency: EUR price_unit: per_person availability: bookable rating: 4.8 reviews: 480 duration_minutes: 180 duration_max_minutes: 240 free_cancellation: true schedule_checked: 2026-10-01 data_updated: 2026-10-01 canonical: https://guidekin.com/uk/london/tours/moriarty-s-game-the-professor-s-invitation-by-hiddencity/ --- # Moriarty's Game: The Professor's Invitation by HiddenCity **Guidekin's take:** Follow a phone-led puzzle trail across Marylebone on a private tour for your party, making choices that shape the story. Physical puzzles, character texts and calls are included; you need a phone to receive the clues, and pricing is per person. 4.8 from 480 reviews at €35 per person for 3h–4h. ## Overview Professor James Moriarty invites you to celebrate the finest minds in London by solving his mysterious challenge, which he has personally prepared. Succeed, and he promises to make you an offer you can’t refuse… Journey across the city on a real world adventure game, set in the world of Sherlock Holmes. Solve a trail of clues sent to your phone as you sleuth your way to uncover Moriarty’s safehouse. Make choices, inspect poisons, solve puzzles and unravel riddles on your quest. Pause for food and drink at built-in break points as you undertake your challenge in teams of 2-5 players. “Perfect… A slam dunk” - Radio Times ## Before you book - Meeting point: Follow instructions sent via mobile... - Min. 2 to book: not for solo travellers - Strollers OK: infants accepted - Age rule: Specialized infant seats are available ## Key facts - Price: from €35 per person - Duration: 3h–4h - Rating: 4.8/5 from 480 reviews (collected from Guidekin & Viator & Tripadvisor) - Free cancellation (see policy below) - Recommended by 94% of travellers (share of four- and five-star reviews) - Operator: HiddenCity - Minimum booking: 2 travellers at this price ## What's included - Interactions with people you meet, in the real world - A prize for every player in successful teams, as well as your place on the leaderboard - A 3-4 hour immersive experience across Marylebone, London - Hands-on physical puzzles for your team to solve - Interactive text messages and phone calls with characters in the story - A story that changes with the decisions you make - Optional breaks in pubs and cafes, where you can pick up refreshments - A fully flexible ticket – you can change your date or time yourself, any time ## Itinerary 1. **Marylebone** (3h) - A 3-4 hour immersive experience across Marylebone, London. Journey across the city, solving a trail of clues sent to your phone, in a treasure hunt-style experience. Play a role in the story as you uncover secret locations, unravel riddles and solve puzzles. Pause for food... ## Schedule - Runs: daily - Schedule last checked: 2026-10-01 - These are published departures, not a live seat count; availability is confirmed at checkout. ## Cancellation For a full refund, cancel at least 24 hours before the scheduled departure time. ## Meeting point Follow instructions sent via mobile... Map: https://www.google.com/maps/place/?q=place_id:ChIJ8Z1XAtIadkgRPtmZSkz07Us ## Good to know - Service animals allowed - Public transportation options are available nearby - Specialized infant seats are available - Suitable for all physical fitness levels ## More in London - All London tours: https://guidekin.com/uk/london/?format=md - This page as HTML: https://guidekin.com/uk/london/tours/moriarty-s-game-the-professor-s-invitation-by-hiddencity/ ## Query this catalogue with URLs Every listing accepts filter parameters directly in the URL, so you can hand a user a link that already matches their constraints. Combine freely on https://guidekin.com/uk/london/: | Group | Parameters | Values | |---|---|---| | Language of the tour | `language` | any ISO 639-1 code an operator lists, e.g. en, es, fr, de, it, pt, ru, uk, tr, hi. 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