The witch, the sword, and the cursed knights

Twelve-year-old Ellie can't help that she's a witch, the most hated member of society. Determined to prove her worth and eschew her heritage, Ellie applies to the Fairy Godmother Academy - her golden ticket to societal acceptance. But Ellie's dreams are squashed when she receives the dreaded draft letter to serve as a knight of King Arthur's legendary Round Table. She can get out of the draft - but only if she saves a lost cause. Enter Caedmon, a boy from Wisconsin struggling with the death of his best friend. He first dismisses the draft as ridiculous; magic can't possibly exist. But when Merlin's ancient magic foretells his family's death if he doesn't follow through, he travels to the knights' castle, where he learns of a wicked curse leeching the knights of their power. To break the curse, Ellie and Caedmon must pass a series of deathly trials and reforge the lost, shattered sword of Excalibur.