From School Library JournalGr 5–7—Steve has always been a worrier, but since his brother was born he's become even more anxious. When Steve starts having dreams about otherworldly wasps, he takes comfort in their message that everything will be okay. But the more he learns about their plan to "fix" the baby's congenital condition, the more he's conflicted. The tension and unease grow as Steve begins to wonder if the wasps are real or imagined. The story comes to a climactic end that is cathartic and comforting. Set in a modern-day suburb, this quiet yet emotionally haunting book thoughtfully explores themes of safety, anxiety, and the beauty of the imperfect. Klassen's black-and-white graphite illustrations complement the sensitive and powerful narrative, written in first person from Steve's perspective. The images have a retro, printmaker feel and never reveal the entire picture, leaving much to the imagination—what is hidden in the unknown? Is it something bad or good? How can you know? The characters are believable and strongly developed, especially Steve, who deals with anxiety and possibly obsessive compulsive disorder. Scientific information on the life cycle, anatomy, and behaviors of wasps is woven in a way that furthers the plot. VERDICT This affecting middle grade psychological thriller is recommended as a first purchase for libraries.—Amy Seto Forrester, Denver Public Library --This text refers to the Audio CD edition.