Eleven-year-old Willodeen adores creatures of all kinds, but her favorites are the strange beasts known as “screechers.” The villagers of Perchance call them pests, even monsters, but Willodeen believes the animals serve a vital role in the complicated web of nature.

Lately, though, nature has seemed angry indeed. Perchance has been cursed with fires and mudslides, droughts and fevers, and even the annual migration of hummingbears has dwindled. For as long as anyone can remember, the tiny animals have overwintered in shimmering bubble nests perched atop blue willow trees. This year, however, not a single hummingbear has returned to Perchance, and no one knows why.

When a handmade birthday gift brings unexpected magic to Willodeen and her new friend, Connor, she’s determined to speak up for the animals she loves, and perhaps even uncover the answer to the mystery of the missing hummingbears.