From the beloved creator of the Baby-Sitters Club comes this New York Times bestselling novel about a neurodiverse girl and the dog she loves, soon to be a feature film starring Paul Rudd and Jeremy Sisto.

Rose Howard is obsessed with homonyms. She's thrilled that her own name is a homonym, and she purposely gave her dog Rain a name with two homonyms (Reign, Rein), which, according to Rose's rules of homonyms, is very special. Not everyone understands Rose's obsessions, her rules, and the other things that make her different – not her teachers, not other kids, and not her single father.

When a storm hits their rural town, rivers overflow, the roads are flooded, and Rain goes missing. Rose's father shouldn't have let Rain out. Now Rose has to find her dog, even if it means leaving her routines and safe places to search.

Hearts will break and spirits will soar for this powerful story, brilliantly told from Rose's point of view.

★ “Martin has penned a riveting, seamless narrative in which each word sings and each scene counts.” —Kirkus, starred review

This title has Common Core connections.