The Half Bad Trilogy Books #1 + #2 by Sally Green

Half Bad (ISBN: 9780141351612, Pages: 380, Condition: Good)
Nathan, a 16-year-old boy imprisoned and abused, is the son of a feared and violent witch in a divided England where rival witch factions coexist with humans. Considered dangerous, he must escape captivity, find his father Marcus, and receive three magical gifts to unlock his powers before time runs out. But constant surveillance and a lack of trust—even among loved ones—make survival and success uncertain.

Half Wild (ISBN: 9780141350882, Pages: 400, Condition: Good)
“Nathan Byrn is on the run. White witches hunt him. Black witches hate him. His gift from his murderous father is a wild new power he can’t control. He must find the girl he loves who may have betrayed him. In a war between black and white witches with his loyalties split between both the greatest danger Nathan faces might be himself…”

*Please note: The first image serves as a representation, while the images thereafter show the physical book itself.