The Abjurationess of Rex Terra — Franklin Newman

One month has passed since Kylie Pendragon killed Sheridan to rescue her friends. Suddenly, Rex Terras Emperor decides to raze the only forest standing between Rex Terra and the rampant, genocidal sea. Using magic to shield the forest, Kylie returns to Earth for safety. There, she meets pyromanceress Zulieka Tribliuex, who kidnaps Brenda. Kylie saves Brenda, giving her superpowers. Together, they safeguard the forest until Zulieka starts murdering people, then reincarnating them into a fiery army. Kylie realizes she must learn dragon magic to stop both Zulieka, and the Emperor. The only way is by liberating the captive lavender dragons.