Kelly Ngai, Mikki Lish (Scholastic UK, 2020)
Magical, spooky and mysterious: welcome to the House on Hoarder Hill .When Hedy and Spencer start receiving messages on dusty picture frames, Christmas at their grandfather's spooky house turns into a mission to solve an old family mystery.
Holly Rivers (Scholastic UK, 2020)
Demelza loves science but her main talent is Spectre Inspecting, summoning the ghosts of the dead. When a family member goes missing, Demelza must use her skill to solve the mystery.
Helen Lipscombe (Scholastic UK, 2019)
Milly yearns to dance like her ballerina mum - but during the biggest performance of her life, she messes up and her mum disappears. Six months on, Milly receives an unexpected invitation to join Swan House, a prestigious ballet school.