Among the towering fir trees of the Pacific Northwest, a famously elusive creature is in serious trouble.

INCLUDES AN EXCLUSIVE BONUS STORY about the medieval Secret Order of the Unicorn

All Elliot wants is a nice, normal day at school. All Uchenna wants is an adventure. Guess whose wish comes true?

Professor Fauna whisks the kids--and Jersey, of course--off to the Muckleshoot territory in Washington, where film crews have suddenly descended en masse to expose Bigfoot to the world, and the Schmoke logging company is bringing in some awfully large machinery.

Can the Unicorn Rescue Society escape the blades of the Schmokes' chain saws? Outsmart a cable news team? And are those big, hairy creatures running through the forest really Bigfoot?