The Midnight Folk (Kay Harker #1) by John Masefield, Quentin Blake (Illustrator)

Kay’s great-grandfather’s treasure is lost and the evil Abner Brown is after it. He has witches and dark magic to help him, but Kay has the very special Midnight Folk.

Determined to recover the long-lost family treasure, Kay finds himself in a race against the evil Abner Brown. Abner has his witch friends and his dark magic to help him, but Kay has the very special Midnight Folk. In a breathtaking, magical quest, which side will find the treasure first?