Here's another entry in an on-target chapter-book series that tackles the ups and downs of friendship. This time, Pinky and Rex are preparing for sleep-away camp. Rex is ecstatic. Pinky, on the other hand, has some worries, and Amanda, his little sister, makes things worse when she tells him that camp counselors turn into people-eating monsters at night. Afraid to admit his fears to Rex or to his parents, Pinky writes a letter to the newspaper's Dear Arnie column and spends some very uncomfortable weeks awaiting an answer that will tell him what to do. Feisty Amanda adds a comic note to the goings-on, and Sweet's bright watercolors, which enliven nearly every page, provide a nice balance for Howe's serious consideration of a child's fears about facing the unknown and disappointing friends. Children will easily relate to Pinky's problems and be delighted when all ends warmly and well. A slightly enlarged typeface and extra leading make the book easy, as well as fun, to read. (Reviewed Apr. 1, 1992)