Slip a whole time traveling adventure between your books with the Mysterious Blue Box DIY book nook kit. Designed for sci fi fans, this miniature scene recreates a glowing blue police box at the end of a narrow alley that opens into swirling stars and a cracked time portal. As you build the layered walls, signage, pavement and light effects, your everyday shelf slowly transforms into a tiny slice of your favorite time travel universe that lights up when you flip the switch.