Homeowners are adding hidden doors and rooms to foil burglars, eke out extra storage space and prepare for Armageddon. Bookcase-fronted doors leading to hidden stairs at the Morgan Library & Museum in ...

What's behind your secret door? Contestants are challenged to design a creative, 5E-compatible dungeon space that lies hidden behind a secret door: anything from a trapped vault to a forgotten lair, a ...

Hiding behind secret doors and bookshelves, using puzzles and passwords to help patrons find the entrance, or even cloistering underneath the city itself. Hidden down long, dark hallways and ...