Kirkus Reviews calls this book for 8-to-12 year-olds "A charming tale . . .with a strong dose of humor." Henry, a grandfather with PTSD from combat decades earlier, is startled to find a strange boy, Squiggly Squires, standing beside him in the woods behind his country home. Squiggly says he came to Henry's world of Out from his world of In and points to a small hole in the hillside with water trickling from it. Henry is sure he is hallucinating again. But unlike other episodes, this one quickly proves to be pleasant. Squiggly tries to explain to a skeptical Henry that by entering that...