"What," Hopper asks his little friend Wilson, "do you think it's like at the end of the world?" Hopper, the blue elephant, imagines a staircase to the moon, while Wilson, the yellow mouse, hopes for an endless supply of lemonade. So the two sail off in a boat made of paper . . . only to discover they already have everything they could wish for in each other, and at home. Maria van Lieshout's adorable new picture book tugs at heartstrings, inspires discussion, and reminds us all how good returning home can feel.