Danger at the Donut Diner – When Melvin moves from the city to Donut (a perfectly round island with a hole in the middle), he thinks it's the most rubbish place ever. Then he meets Rhubarb. Rhubarb is obsessed with mysteries and has her own school newspaper to investigate the strange goings on in Donut. (Unfortunately nothing ever happens in Donut so she's never had anything to write about.) But then Melvin notices that the kids at school are acting very strangely. Could it be something to do with the Donut Hole Monsters that everyone is collecting? Attack of the Haunted Lunchbox – Melvin, Rhubarb and Yoshi are on the hunt for a new mystery to write about in the Daily Donut newspaper, but little do they know, it’s right under their nose ... there’s something spooky in the sandwiches! Soon Rhubarb and co are sure there's a ghost in her dad's cool old retro lunchbox, but when no one believes them - and the whole town is in danger – it’s up to the detective duo to investigate the haunted lunchboxes all on their own ...