A mysterious stranger. A magical clock. A race against time.
Thirteen-year-old Sybilla “Billie” Hartley thought growing up in a house full of dusty relics was strange—until a magical black cat shows up and reveals a secret that changes everything.
When her broken grandfather clock turns into a Time Portal, Billie is pulled into a 140-year-old mystery involving a missing inventor, secret societies, and a man accused of murder.
With the help of Lolo the Guardian Cat and Jack, the son of a local antique dealer, Billie must stop dark forces that threaten her family, her future—and time itself.