Treasure of the Abyss (The Kraken #1) by Tiffany Roberts ★★★★☆

Reread - This is exactly what the day needed, some kraken fun.

Merfolk May is Kraken Awesome!

Long ago on a planet far far away a race of beings was created to serve as deep water laborers. 

They revolted.

They took a name to inspire fear in the surviving humans.
Kraken.

Three hundred years later Macy, a humble gardener, will cross paths with a kraken. The results...

This will require further reading.