Escaping from a gang of bullies, a Boy slips into London"s National Gallery - the perfect hiding place, full of mystery and treasures. Enchanted by the magic of painting and befriended by a mischievous dog, the Boy ventures into the world of a famous Vermeer painting - and he and his new friend are transported to Little Street, Delft in seventeenth century Holland. But the streets of Delft are a dangerous place for a dog, and the Boy has to use every ounce of his ingenuity to rescue his canine mate from an untimely fate on the butcher"s block. Young readers will enjoy spotting much-loved characters from the previous Boy Bear books in this triumph of visual storytelling.