Alexandre Côté-Fournier studied creative writing and cinema and now teaches college students. He wrote his first horror stories when he was a teenager. He used an old-fashioned typewriter because he wanted to feel like a "real author." Since then he's never stopped writing, but he doesn't use that ancient writing machine anymore. Now he prefers to use a "good old" computer instead.

Geneviève Bigué is an illustrator and comic artist who works in many fields, including publishing and advertising. What's in the Walls? was her first book for young readers as an illustrator. Her first graphic novel as an author, Parfois les lacs brûlent (When the Lake Burns), won many awards, including the 2023 Prix des libraires du Québec, and was nominated for the 2023 Governor General's Literary Awards in Young People's Literature. She lives in Montréal.

David Warriner grew up in the UK and escaped to Quebec right after graduating from Oxford. A professional translator for nearly two decades, David nurtures a healthy passion for Quebec fiction and has translated a range of fiction, nonfiction and children's fiction titles by Quebec authors for British and Canadian publishers. He lives in Penticton, British Columbia.