"Three teens at a summer program for gifted students uncover shocking secrets in the sanatorium-turned-dorm where they're staying--secrets that link them all to the asylum's dark past"--

Deer wakes up to find one of his antlers is missing...and there's a tennis racket in its place? One by one his friends also uncover that their important items from glasses to lucky boots have been swapped with silly, useless replacements like donuts and swim flippers. They've been hornswoggled! (Hornswoggled means tricked.) It's pure poppycock! (Poppycock means nonsense.) Once they gather together to find out what happened, will they find the true...

"Twilight and Nightfall enter an underground tennis tournament, hoping for an opportunity to obtain an intelligence document that threatens to bring the world to the brink of war! But will their mission be compromised by Nightfall’s secret crush on Twilight?!"--