Luke shares a treehouse with his geeky older brother, Zack. Luke goes for a wee and while he's gone an alien gives his undeserving, never-read-a-comic-in-his-life brother superpowers, and then tells him to save the universe! Luke is furious, but when Zack is kidnapped by his arch-nemesis, it's up to Luke and his friends to save the world.

Zack and Lara have superpowers. Luke has new school shoes and a burning sense of resentment. He KNOWS that aliens disguised as gym teachers are about to attack Earth but will anyone listen? No. So one dodgy pact with a self-styled supervillain later, and Luke is ready to save the world. He just need to find his trainers.

Izzy and her friends plunge into more primary-school craziness. This time, they decide that their new head teacher is a vampire rat, based on his being slightly scary, having the blinds drawn in his office during the day and the fact he's banned garlic bread at lunchtimes. Now they just have to come up with a plan to vanquish him.

Following on from the National Trust's hugely successful media campaign, this book is bursting with ideas to help children discover the great outdoors and get closer to nature. The pocket-sized companion is full of handy tips, nature facts and activity checklists.

Aya is eleven years old and has just arrived in Britain with her mum and baby brother, seeking asylum from war in Syria. When Aya stumbles across a local ballet class, the formidable dance teacher spots her exceptional talent and believes that Aya has the potential to earn a prestigious ballet scholarship.

What would you do if you were settling down for a quiet bedtime story and you realised that a crocodile had fallen into your storybook and was - not to put too fine a point on it - furious? Would you slam that book shut and cram it in the bookshelf for evermore, or would you be brave enough to peek?

A daring rescue leads to a desperate search for an otter cub's family...