Jack Heath’s thrilling new novel arrives this April!

Once Upon a Festival presenter and bestselling Australian author Jack Heath is releasing a brand‑new YA thriller, I Know What You’re Hiding, on 1 April 2026!

Aimed at readers aged 12 and up, this gripping mystery follows teen podcaster Zoe Gale as she’s pulled into a dangerous investigation. Three years after a deadly house fire, survivor Jamie George receives a chilling message written in blood—and turns to Zoe for help unmasking a blackmailer. But the deeper Zoe digs, the more she realises that someone will do anything to keep the truth buried.

Packed with secrets, suspense, and Jack Heath’s signature high‑stakes storytelling, I Know What You’re Hiding is perfect for students who love fast‑paced thrillers and unexpected twists.

Jack Heath will be appearing at Once Upon a Festival later this year, giving students the chance to hear about and learn the techniques about how he creates his intense, page‑turning stories…