Book After Dark tickets & spend Halloween at Mary Shelley's House of Frankenstein
Mary Shelley's House of Frankenstein is turning out the lights for After Dark 2026 Horror Nights, an intense Halloween horror experience that takes over a 300-year-old townhouse in the centre of Bath.
This year, After Dark presents The Watcher, a creature born from human anguish and sustained by every flicker of misery. As you move through the building and encounter those trapped in its grip, every moment of distress makes it stronger. Keep moving. The Watcher will follow.
- Enter multiple rooms inside a haunted 300-year-old townhouse in total darkness
- Navigate labyrinths, dead ends, crawl spaces and confined areas
- Encounter live horror actors as you move through the experience
- Face jump scares, special effects and an assault on the senses
- Venture into the foreboding underbelly of Mary Shelley's House of Frankenstein
- Visit The Bitter End Bar for curious, mind-bending shots
- Book After Dark 2026 Horror Nights tickets and find out whether you make it back out...
After Dark Horror Nights at House of Frankenstein
- Event Nights: 23rd, 24th, 29th, 30th & 31st October 2026
- Times: 6pm - 9pm
- Age Restrictions: Not suitable for anyone under 15 years old
- Duration: Approximately 30-45 minutes
- Location: Mary Shelley's House of Frankenstein, 37 Gay Street, Bath BA1 2NT
- Individual After Dark Tickets: Entry to After Dark event
- eBook & FREE After Dark Ticket: Purchase The Horla, by Guy de Maupassant eBook and receive one FREE After Dark ticket.
- Death Wish After Dark Tickets: Entry to After Dark event & one shot. Non-alcoholic options available.
- Escape Rooms: Victor's Lair will remain open until late.
Escape Room sessions from 5:30pm onwards include the After Dark event. - Please note: This event is not suitable for anyone under the age of 15.
Meet The Watcher at Mary Shelley's House of Frankenstein
After Dark is not the standard daytime museum experience. This is a live, intense horror event created for visitors ready to face darkness, confinement and a building full of things that do not intend to stay quietly in the shadows.
Move through rooms filled with misery and torment while The Watcher follows your journey. The experience uses live horror actors, special effects, jump scares, restricted lighting and confined spaces to create psychological paranoia from the moment you step inside.
You will need to navigate multiple floors, staircases and low-level crawl spaces, including areas that require you to kneel and crawl for short periods. Every turn takes you further into the building, from its darkened rooms to its unsettling basement.
Take your After Dark visit even further with Victor's Lair Escape Room
Victor's Lair is a separate one-hour, puzzle-based escape room experience. Evening escape-room sessions booked from 5.30pm onwards on selected After Dark dates include entry to After Dark 2026 Horror Nights.
Escape-room tickets are priced separately according to party size, so check your chosen ticket carefully before booking. After your encounter with The Watcher, you can also stop at The Bitter End Bar and steady your nerves with one of its mind-bending shots, including a non-alcoholic option.
Think you can handle the darkness? Book After Dark 2026 Horror Nights tickets and prepare to meet The Watcher.