Invincible

With first Ravie, then her sister Alie joining the team, Ark is sure his life can't get much more interesting. He learns just how wrong he is when he's approached by Everion and Armella, the leaders of a rebel group called Red City. Though he agrees to help them with an uncooperative artifact, he soon discovers that they may be more deeply entwined in his own affairs than he thought. NOTE: This story is part of a series. It's recommended that you confirm the series and its placement in that series, as indicated at the top center of the cover art, before reading.