Behind His Mask: The First Spell Book

This is an Apple Books audiobook narrated by a digital voice based on a human narrator.

Evander is a complete mystery to Sarah.  She babysits his cousin and watches him from the corner of her eye.  He keeps to himself and Sarah has little hope of learning more about him until she's given a spell book he authored.  Is he a tortured prince? A bloodthirsty jester?  The owner of the haunted mansion or the man hired to drive the ghosts out? 

Only the book will tell.