The hottest picture book from the incredible duo behind the New York Times bestseller, The Leaf Thief! Squirrel is back, and he's enjoying the long, sunny summer days. But wait! Why is Bird going to bed when the sun is still up? What a silly idea! Squirrel could neverfall asleep while it's still light... And when the sun starts to disappear earlier and earlier each night, Squirrel is convinced there MUSTbe a sun thief about! Join Squirrel on a mission to find the culprit, and meet some new nocturnal friends along the way. Luckily, the sun always comes out in the end ...