Glassborn: Magicborn #2

Fairy Tree tall and grand, open a path to Fairyland. The year is 1826, and the four Belle siblings arrive at their new home - Fairykeep Cottage. Here Acton, the youngest member of the family, discovers a hidden key that opens a door into Fairyland. But when he ventures through, he's kidnapped by the Fairy Queen's servants. Cora, Elle and Bram set out on a quest to rescue their brother. But Fairyland is full of dangers...and to overcome the Fairy Queen they will need all their courage, cunning and a great deal of hope. An enthralling tale of magic and mystery, from the bestselling author of The Cogheart Adventures.