Hidden in Darkness (In Darkness, #1)

Spook's, published as The Last Apprentice in the United States, is a children's dark fantasy series by English author Joseph Delaney. It is published by imprints of Penguin Random House in the United Kingdom and HarperCollins in the United States. The series has been published in 30 countries, with sales exceeding 4.5 million copies. It started in 2004 with The Spook's Apprentice, which has been adapted into a play script, a feature film titled Seventh Son, and a French graphic novel.