Ernestine Montgomery is the kind of kid who gets things done. She's smart, prepared, and always knows just what to do. But there's big trouble brewing inside the walls of the rambling old mansion where she lives... and only Ernestine can decipher the clues that point in one direction-murder!

Can Ernestine solve the mystery before catastrophe strikes?

What the critics and other authors have to say...

"Harriet the Spy meets Coraline...Wyatt has created a bright, determined, and emotionally complex protagonist to join the illustrious roster of young mystery-solvers and monsterslayers...A heroine to warm the heart and a mystery to chill the blood." -- Kirkus Reviews

"A snarky, sparky Nancy Drew of the undead with more twists than a zombie zumba class. I sooo want Ernestine on my side when the zombie apocalypse comes!" -- Mo O'Hara, author of the NYT bestselling My Big Fat Zombie Goldfish series

"Among a cast of colorful characters who leap off the page, no one stands out as much as the wonderful Ernestine. She blends brains and bravery with heart and humor to pull the reader along for an unforgettable ride. Catastrophe has never been so much fun." -- James Ponti, Edgar Award-winning author of the Framed! mystery series

"Wyatt's first novel reads like a middle-grade version of the movie Clue. Readers will enjoy this murder mystery." -- Booklist

"A traditional mystery filled with laugh-out-loud funny moments make for a winning combination." -- School Library Journal