LIMITED RUN — PLAYABLE OCTOBER & NOVEMBER 2026 ONLY
Agent River's lab pass, recovered from the scene image by clueQuest escape room in london
RIVER, S. — MISSING
STRICTLY 18+

POST MORTEM

CLUEQUEST'S ESCAPE ROOM MISSION
2-7 PLAYERS 60 MINUTES DIFFICULTY 3/5
BOOK YOUR SLOT King's Cross, London
DEPARTMENT BRIEFING

You are the replacements.

You've been recruited as the newest members of clueQuest's Forensic Science Department, after the disappearance of the previous intern, Agent River. The head scientist, Doctor Monroe, has been keeping things afloat — but we lost contact with the lab several days ago, and he has been acting suspiciously.

MISSION BRIEF

We need to uncover what happened to Agent River during her assignment. You must gain access to the Forensics Lab through the doctor's living quarters and find evidence that links to her disappearance and whereabouts.

But time is of the essence, agents. Doctor Monroe is not on site at the moment — and we don't know when he will return.

CASE FILE 26–3241
Duration60 minutes
Team size2-7 players
Age rating18+ only
Difficulty ■ ■ ■ ■ ■
Mission typeClassic
LocationKing's Cross
CHECK AVAILABILITY
18+ ONLY

The game contains intermittent flashing lights, dim lighting and occasional blackouts. Some puzzles involve identifying colours and deciphering audio.

ACCESSIBILITY

The room is wheelchair accessible, though some puzzle elements will be adjusted to make them within reach. Talk to us about any access needs before you book.

Why this mission?

CAPACITY

One escape room unit in London with up to 7 players. Total capacity 7 players per session.

RECOMMENDED FOR

Adult escape game veterans — and rookies who are up for a harrowing, high-adrenaline challenge.

MISSION TYPE

A classic, with a mixed linear and non-linear set-up — perfect for keeping everyone on your team busy.

Book your slot

Please note that unsold games are removed from public sale two hours in advance.

Questions from the field

Anything we haven't covered? Talk to us before you book.

This mission has a limited run so it will only be available from October 5th to November 8th. We'd love to bring it back next year if it's a success, but if you really want to see it, we recommend booking now!

Unfortunately due to the nature of the experience, we must operate under a strict 18+ only policy. You may be asked to show ID if you appear close to that age, in accordance with our Challenge 25 policy.

We do need to be strict with this and any age under 18 is not permitted.

Due to the nature of the lighting and sound environment this game is not suitable for infants in pushchairs or carried.

Post Mortem is primarily a horror experience, targeted at adults. It contains themes of danger and threat of murder, and is designed to be a thrilling experience where players are kept on-edge throughout.

The game features graphic injury detail, implied extreme violence and threat designed to create an atmosphere of tension and some jump scares.

Although the aim of the experience is to create the illusion of peril, you will be in no danger throughout the mission. As with all of our rooms, you will never be really 'locked in' and you can leave and re-enter at any time. Our staff will be on-hand to make sure that our health and safety policy is still enforced and to provide assistance should any accidents occur.

Our staff will never touch, insult or impose real threat to you and we require that you have no physical contact with them in return. Our zero-tolerance policy to threats of violence towards our staff still stands.

Well then you'll be murdered of course...

This mission has a strict 60 minute time limit tied to the story of the experience and we are unable to give extra time in the event that the full game is not completed in time.