Daughter of Nyx (Series)

Disclaimer
This is non-profit fanbased story. Percy Jackson, The Heroes of Olympus and the Kane Chronicles are owned Rick Riordan.

Summary
The Daughter of Nyx series follows teenage demigods Sabrina Nightshade, Kaito Fukuyama and Ariel Henson as they go on journeys to save to the worlds of mortals and the world of immortals. Each of the three characters will have a 3rd POV on them in each story, and 3 chapters at a time (sorta like in The Lost Hero).

Books
Book 1: Blade of the Scolopendra Book 2: Spiral into Chaos Book 3: Armageddon