This clever little tale written in the admirable mould of A Series of Unfortunate Events retells the Grimm brother's story Brother and Sister in a flashy, action packed, modern setting. It's part 2 of an horror escape adventure as two siblings get caught up in the machinations of a forest witch (and hunted down by her cursed hunter) after just escaping another household witch who wanted to cook them for dinner. Appropriately Grimm as just as entertainingly macabre as Lemmony Snicket's tales or other modern children's horror like the Spiderwick books, but perhaps lacking that additional, memorable flare of a children's horror writer like Gaimen.
What is excellent about the Witch's Curse is the pacing and the characters. The book is action packed enough for the impatient and the twists, while obvious, have that approaching dread important to all horror tales. But McGowan also has momentary linguistic detours - his enchanted forest and its animals are patiently created and described and the atmosphere created is real and vivid. The chase scene are adrenaline packed but lush with setting and preparation. Moments of drama, like the dangerous river crossing, feel appropriately dangerous and the younger sisters trip downstream is sensually evokative, breathless almost.
The two leads are not typecast, although they do share a slight Gothic weirdness with the Unfortunate Event's children. They are also not very harmonious and prone to mistake. Those mistakes, betrayals and annoyances with each other are used to solidify their sibling relationship and it makes the sense of duty to one another and their care for one another seem more believable. It's not a masterpiece, not entirely original, but McGowan's reinvention contains fitting servings of traditional fairy tale atmosphere with plenty of modern style, as well as some very evokative descriptive writing and enough mystery to keep the plot interesting till the end. 5