From bestselling author Johanna Basford, a stunning new coloring book that invites artists to explore the great indoors. Hidden within every illustration in Rooms of Wonder is a secret key and a locked door. Find the key, unlock the door and continue to the next room. Discover a busy craft studio, a wizard's workshop, a mouth-watering ice cream parlour and an opulent banquet hall. With hidden treasures, curious spaces and a few enchanted interiors, all you need to do is unlock the first door and begin your magical journey.