"Hank the Cowdog: Lost in the Dark Unchanted Forest" by John Erickson (Book 11)

Lost: one little boy. When Little Alfred runs away from home and winds up in the Dark Unchanted Forest being trailed by a bobcat, Hank the Cowdog knows that it's up to him to save his young master. So, mustering up all the courage that a Head of Ranch Security can come up with, he bravely makes his way into the forest. But before long, Hank is even more lost than Alfred. Can he find his master and get them both out of the woods? Or is he destined to pass the rest of his days going in circles?