A highly acclaimed Caldecott Medal-winning picture book about the world of imaginary friends from master picture book-maker Dan Santat.On one very special day an imaginary friend is born on an island far away. Here, he and his other imaginary friends play all day and each night they sit beneath the stars, hoping and waiting for their turn to be picked, to be imagined, by a real child. But this particular imaginary friend waits and waits, and still no child imagines him. So he does the unimaginable – he sets off into the real world and meets shy, bookish girl named Alice. . . 'A sweet, mind-bending gumdrop of a tale' NEW YORK TIMES'Bursting at the seams with charm' HUFFINGTON POST'Charming' - GUARDIAN, The Best New Children's Books