On holiday in Cornwall, the three Drew children—Simon, Jane, and Barney—uncover an ancient map in the attic of their mysterious Great-Uncle Merry's house. What begins as a curious discovery quickly transforms into a perilous quest for a powerful, age-old grail. They soon realize they are not alone in their search, as malevolent forces from the past stir, seeking to claim the artifact for their own dark purposes.

Why You Should Read?

• Embark on a classic children's fantasy adventure rich with mystery and magic.
• Experience a compelling story of good versus evil set against the atmospheric backdrop of Cornwall.
• Meet memorable characters as they navigate ancient prophecies and hidden dangers.
• Discover the thrilling origin story for the celebrated The Dark Is Rising sequence.