Chronicles of Nick

The Chronicles of Nick is a series of young adult novels written by Sherrilyn Kenyon. They are a spin-off of the Dark-Hunter, Dream-Hunter, Were-Hunter and Hellchaser Universe. The series is about a teenage boy named Nick Gautier, the son of a powerful demon.
The first three books in the series, "Infinity", "Invincible", and "Infamous", all appeared on The New York Times Best Seller list.
Books.
Recommended that you read the Dark Hunter Series at least through Styxx before reading any of the Chronicles of Nick. Chronologically it makes more sense that way and you might get spoilers if read in reverse.
Series Summary.
"I am the power they can't tear down"
The series follow the adventures of a teenage powerful demon Nicholas Gautier as he teams up with allies including a mysterious love interest Nekoda, a cranky, cynical demonic guardian Caleb Malphas and a grimoire that has a mind of its own to change his less than stellar destiny of bringing forth mass destruction on the world for where there is choice, there is hope.but along their journey they shall face many difficult choices. who or what to trust who is ally and who is enemy.