Ravensburger Vampire Castle Escape Puzzle. Roughly 18 hours between two people. Super fun puzzle, we didn't bother solving the riddle however. : r/Jigsawpuzzles
Amazon.com: Ravensburger Escape Puzzle Vampire's Castle 759 Piece Jigsaw Puzzle for Kids and Adults Ages 12 and Up - an Escape Room Experience in Puzzle Form 27" x 20" : Toys & Games
Escape Rooms come to Puzzles! - The Board Game Family
Vampires Castle Jigsaw Puzzle Time Lapse - An Escape Room Puzzle Experience by Ravensburger - YouTube
Amazon.com: Customer reviews: Ravensburger Escape Puzzle Vampire's Castle 759 Piece Jigsaw Puzzle for Kids and Adults Ages 12 and Up - an Escape Room Experience in Puzzle Form 27" x 20"