Flyte - book 2

Enter the world of Septimus Heap, Wizard Apprentice. Magyk is his destiny.
The evil necromancer DomDaniel has been disposed of, but something Darke is stirring. A Shadow pursues ExtraOrdinary Wizard Marcia Overstrand around, following her every move, growing stronger every day. Septimus senses something sinister is afoot, but before he can act, Jenna is snatched - taken by the most unlikely kidnapper. Septimus must rescue his sister but does not, at first, realise the power of the forces at work behind her disappearance.