The Darkdeep is a middle-grade horror novel by Ally Condie and Brendan Reichs. When Nico falls into misty Still Cove after trying to retrieve his quadcopter, his friends Emma and Tyler along with Opal rush to his rescue. To their surprise, they stumble on an uninhabited island hidden in the mists of Still Cove.
Venturing deeper into the dense woods and murky tides, the kids discover an abandoned houseboat in the middle of the island. The houseboat contains an array of curiosities and artifacts: odd-looking weapons, tomes, unnerving potraits and most of all, a jar with an unidentified creature.
But what surprises the most is a pool that is dark and deep. It has the power to bring imaginary creatures into life, called Figments and within it, has sinister and dark secrets.
The Darkdeep contains examples of:
- Eldritch Abomination: The titular Darkdeep. It is a sentient supernatural being resembling a dark and deep pool with a vortex. It is capable of materializing Figments, creatures from the kids' psyche, feeding and taking on forms of the kids' fears and latch into the psyche as a parasite
- Sealed Evil in a Can: The Darkdeep. Should the cycle of Figment manifestation allowed to continue, the Darkdeep will escape if isn't Watched.