Twelve-year-old Caroline Kline doesn’t believe in miracles. Not after her mom died, and certainly not after her family lost everything in Hurricane Emma. All Caroline wants to do is fit in at school, make some friends, and, above all else, just be normal.

But when Caroline takes a job walking Denver, her neighbor’s dog, her plans quickly get turned completely upside down. As it turns out, Denver is no ordinary dog: not only can he talk—and not like bark-bark but in actual English—but worse than that, Denver tells Caroline that he’s been sent from the heavens with a message just for her.

It’s up to Caroline to find a way to bring belief back to the world.