Everyone thinks that Sophie is an orphan. Found floating in a cello case, she is the only recorded female survivor of a shipwreck on the English Channel. But Sophie remembers seeing her mother wave for help… When the child welfare agency threatens to send Sophie to an orphanage, Sophie and her guardian flee to Paris to find her mother, starting with the only clue she has - the address of the cello maker.

There are no polar bears left on Bear Island. At least, that’s what April’s father tells her when his scientific research takes them to this remote Arctic outpost for six months. But one endless summer night, April meets one. He is starving, lonely and a long way from home. Determined to save him, April begins the most important journey of her life....

When Fionn Boyle sets foot on Arranmore Island, it begins to stir beneath his feet.... Once in a generation, Arranmore Island chooses a new Storm Keeper to wield its power and keep its magic safe from enemies. The time has come for Fionn’s grandfather, a secretive and eccentric old man, to step down. Soon, a new Keeper will rise. But deep underground, someone has been waiting for Fionn. As the battle to become the island’s next champion rages, a more sinister magic is waking up, intent on rekindling an ancient war.

On a poor farm, six motherless sisters - Grace, Willa, Freya and triplets Deedee, Darcy and Dolly - live in fear of their cruel father. When the Full Moon Fayre visits Hollow-in-the-Marsh, there's a chance for the older girls to steal a moment's fun: they slip out to visit and are enthralled by the shadow-puppeteer. But the day the fayre moves on, Grace vanishes. Willa goes after her, following a trail into the dangerous Lost Marsh, where it is said a will-o'-the-wisp lures lost souls into the dark waters of the mire.

Willow Moss, the youngest and least powerful sister in a family of witches, has a magical ability for finding lost things - like keys, or socks, or wooden teeth. Useful, but not exactly exciting. Then the most powerful witch in the world of Starfell turns up at Willow’s door and asks for her help. A whole day - last Tuesday to be precise - has gone missing. Completely. And, without it, the whole universe could unravel. Now Willow holds the fate of Starfell in her rather unremarkable hands. Can she save the day - by finding the lost one?