Author(s): Adam Gidwitz; David Bowles; Hatem Aly (Illustrator)

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A new adventure begins for Elliot and Uchenna when Professor Fauna bursts into their classroom with
a frightening report from the Texas-Mexico border- something has completely drained the blood from
a cow's body! The team must fly to Laredo, where tempers are running high.

Teaming up with local kids Lupita and Mateo-plus their brilliant mother, Dr. Alejandra Cervantes, and her curandero husband, Israel-can the Unicorn Rescue Society save the region's animals and help bring a divided community together once more? And what is that spiny, bloodsucking, adorable little creature?