In this heartwarming and hilarious reimagining of The Strange Case of Dr. Jekyll and Mr. Hyde, a secret potion accidentally turnseager-to-please eighth grader Jaclyn into Jackie, a goblin-like monster who’ll do anything to win at everything she does—no matter how much chaos she creates along the way.

Jaclyn Hyde is almost perfect. Whether she’s baking cookies for her classmates, building a replica Mt. Vesuvius for the science fair, or practicing her lines for Fog Island: The Musical, she almost never makes mistakes.

But when she discovers the last batch of perfection potion in an abandoned laboratory, Jaclyn decides that being almost perfect isn’t perfect enough anymore.

But instead she finds out that trying to be perfectly perfect isn’t all it’s cracked up to be. In fact, it’s downright horrifying. The potion turns Jaclyn into Jackie, a goblin-like monster who’ll do anything to make sure Jaclyn comes out on top.

Suddenly, she’s wreaking havoc on the school play, stealing someone else’s brownies to pass off as her own, and even destroying someone’s painting to get herself crowned “Artist of the Week.” And that’s just the beginning. Jackie will stop at nothing to make sure everyone knows just how perfect Jaclyn really is.

So now, if Jaclyn wants to save her school, her friends, and herself from her perfectly horrifying alter-ego, she’s going to have to screw up her courage and risk it all—even if that means admitting that she never was as perfect as she seemed.

Annabeth Bondor-Stone and Connor White, the authors of Time Tracers and the Shivers series, bring their signature wit and humor to this thrilling new take on The Strange Case of Dr. Jekyll and Mr. Hyde—just right for anyone who’s ever wished to be more perfect.