Book excerpt: In this companion to her acclaimed 2005 novel, A Dog's Life, Ann M. Martin tells the parallel stories of a stray dog (the brother of the dog featured in A Dog's Life), a boy dealing with unspeakable loss, and a boy whose most ardent wish is to own a dog—and everything for a dog. Bone and his sister, Squirrel, are stray dogs born in a shed. Left motherless as puppies, the two dogs survive together for a while, but are soon wrenched apart. Bone doesn't know if his sister is still alive, and must now go on, alone. Charlie is a boy who has suffered a terrible loss. And, as he's healing with the help of his dog, another tragedy occurs. Henry's best friend has moved away. All Henry has wanted is a dog of his own. But his parents won't let him. Bone, Charlie, and Henry live very different lives, but they are fated to intersect in surprising ways. Award-winning author Ann M. Martin has written a powerful, heartfelt novel that's perfect for anyone who has ever longed for a dog, or loved one.