Sentinels: Keepers of the Forest by Kate O'Hearn

What worked:

Young readers will love the main characters, which are different varieties of squirrels. The author includes facts about the animals to keep them “realistic” and relatable. Common predators are a constant danger, such as hawks, foxes, and skunks. The characters must forage for food and seek shelter from their enemies and nature. Rum has visions of possible future events and dangers, and he warns his clan about a severe, deadly snowstorm and attacking predators. He’s joined by a Lowland squirrel named Nearly, and she has a keen sense of her surroundings. Her ability seems similar to Rum's, although she can’t sense things that haven’t happened yet. 

Readers will feel empathy for Rum, as the other squirrels, including his brothers and sisters, don't accept him. He’s the smallest squirrel in his litter, and his deformed leg makes it harder to navigate his home and environment. He frequently feels an overwhelming need to scream, but he knows he must keep it secret. He’ll be banished from his home and clan if any of the other squirrels find out. Readers will think highly of Rum, since he’s the only member of his family willing to help their mother care for three new baby sisters. His empathy for others is evident throughout the book, and it’s probably a big reason why Nearly becomes his best friend. In return, she often acts as his protector.

Prejudice and understanding are big issues. All of the sentinels are different from the other squirrels in their clans, and they’re shunned, mocked, or feared. The five different squirrel clans are very territorial, and they never work together. None of the forest animals cooperate, and the smaller, weaker animals are often at the mercy of the stronger ones. Rum’s abilities allow him to make seemingly risky choices by spreading understanding and compassion for prickly or dangerous characters. The sentinels’ calls cause former foes to join forces to protect them during their journey to the Dark Forest. One evil antagonist disrupts their quest, and his misguided plans may spell doom for the entire forest.

What didn’t work as well:

The summary on the back of the book tells readers a deadly fire is coming, but the story doesn’t reveal that information until it's nearing the end. This huge surprise should have been left for readers to discover on their own. The back cover spoils the mystery of the sentinel’s message.

The final verdict:

Young readers will enjoy the animal characters and the sentinels’ determination to save the forest. There’s even a good deal of suspense and action for adventure lovers. I recommend you read this first book in an inspirational new series.