From Edgar Award nominee and WNDB cofounder Lamar Giles, this middle grade adventure stars the Epic Ellison twins as they race to solve the mystery of Cosmos Camp for young geniuses in a stand-alone companion to the Legendary Alston Boys series.

School’s out, and Wiki and Leen Ellison are facing a new challenge… their first summer apart! Genius inventor Leen has been accepted to Petey Thunkle’s world-famous summer training program for STEM prodigies with their eyes on the stars. Meanwhile, Wiki is looking forward to her first summer on her own, running the family corn stand and outclassing Otto and Sheed Alston.

But the night before Leen’s departure, the twins find out that Wiki has also been accepted into the same camp (even though she didn’t apply). And they are... not thrilled. This summer was never supposed to be a Twin Thing! The situation soon goes from bad to worse—because the Ellisons haven’t been invited just to participate in the program.

They’re there to solve a mystery.

Someone (or something) has been tampering with the company’s upcoming big-deal rocket launch. Now, the sisters are undercover, dealing with hyper-competitive campers by day and trying to stop the mysterious saboteur by night.

All is not as it seems at PeteyTech. There are bigger, badder forces at play than the girls could’ve imagined. And if Wiki and Leen don’t get their act together fast, their first epic adventure away from Logan County could end up an epic fail... for the entire world.

Lamar Giles is the Edgar Award–nominated author of the Legendary Alston Boys series, as well as several young adult novels. He is the cofounder of We Need Diverse Books and the editor of the WNDB anthology, Fresh Ink. He lives in Virginia with his family.

Morgan Bissant is a graphic designer and illustrator based in New Orleans, Louisiana. She received her BFA in Fine Arts from Louisiana State University. Morgan has been drawing since she was a child, and cartoons, comics, anime, and anything animated are her biggest inspirations. She enjoys creating diverse characters.

“[A] clever novel... Giles sets the stage for boundless aspiration.” — New York Times Book Review

“Leen and Wiki make a great team, and watching them in action as they work on their own relationship while simultaneously averting cosmic catastrophe juices up the emotional resonance as well as the action in this epic exploit.” — Booklist

“The relationship dynamics between the engaging, likable sisters will resonate with many readers, who will enjoy accompanying them on this adventurous journey. An imaginative, thrilling story exploring family and team dynamics through the lens of invention.”  — Kirkus Reviews