Det har gått ett år siden Septimus Heap kom tilbake til sin virkelige familie. Og det er ett år siden han skjønte at han var trollmann. Som lærling hos ypperstemagiker Martha Overgård, utdannes Septim 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.