Welcome to Spirit Academy - the ultimate Idol training academy for future K-Pop superstars. Class has just started, and shy Sanha has no idea why she's here. She loves singing, but only on her own in the mirror, and she is permanently in the shadow of her sister - the school's most legendary K-Pop superstar. Sanha retreats to the bathrooms to eat her lunch, where she meets three other girls hiding for different reasons - Kenny, Jo, and Lia. Only to be rudely interrupted by the appearance of a wild bog monster! After accidentally defeating it, the group discovers the real secret of the school - it's a training ground for young monster-slayers, teaching magical skills to take down the terrifying network of underground spirits trying to take over the world. Fast-tracked into training alongside the school's most elite, the girls become firm friends. But when vampires kidnap Sanha's sister, the friends face their fiercest challenge yet - to infiltrate a concert undercover as the hottest new girl group, with Sanha as their lead singer. Can she find her voice? And can the group unite to kick those monster butts back to the underworld once and for all? K-Pop drama, first crushes, and kicking monster butt - it's another ordinary day at Spirit Academy...

• Format: Paperback / softback
• Publication Date: 02/06/2026
• Publisher: HarperCollins Publishers
• Country of Origin: United Kingdom
• Pages: 224
• Dimensions (mm): 198x129x22mm
• 8-12 years