Do I need to read HEX before starting this book?

While this story features the return of the character Robert Grim, it functions as a distinct narrative that can be understood on its own. Reading the previous book provides additional context for Grim's background and personal history, but it is not strictly required to follow the plot of this installment.

Is this book part of a larger series?

This novel is the second entry in the Robert Grim series, which centers on the titular occult specialist as he investigates supernatural occurrences.

Oracle

Horror Paranormal Horror

Pages: 384
Published: 2021
Language: English

Synopsis

On a foggy winter morning in the Netherlands, high schoolers Luca and Emma discover the impossible: the wreck of an eighteenth-century sailing ship, stranded intact in the middle of a flower field. Emma climbs through a hatch on the deck—and is never seen again. She will not be the last to vanish.

Desperate for answers, the survivors turn to Robert Grim, the retired specialist of the occult, who comes to suspect the ship is a harbinger: a doorway to an ancient force stirring beneath the sea, one that could unmake the world. The second novel in Thomas Olde Heuvelt's Robert Grim series (after HEX), Oracle is a supernatural thriller of international intrigue and mounting terror, scaling its author's signature small-town dread up to an apocalyptic threat.