When Theodosia’s magic grows out of control, she must go on a life-or-death quest to find the long-lost Oasis of Magic, facing strange, new enemies; an ancient mage, seeking the Oasis for themselves; and life at a brand-new school.

With her powers renewed and enlarged by the Oasis’s magic, Theo finds herself caught up caught up in a battle across time to prevent the creation of a machine that threatens to poison the world’s magic and destroy the globe itself.

Full of fun, thrills and heart, Theo’s adventures will see her making new friends and discovering new powers, taking her from the tunnels of the London Underground to magic-twisted temples to the Ancient Egyptian underworld and the time of Ramses II himself.