GWEN KHAN SPOILER!

Professor Gwen Khan is one of the scientists behind the XGP15A-II project and Melfina's creation, which gives him answers Gene desperately needs and absolutely no reason to provide them freely. Khan's curiosity is scientific in the most dangerous possible sense. The Galactic Leyline represents a source of knowledge so vast that questions of ownership, loyalty and ordinary morality become secondary to reaching it. He manipulates Gene by shutting Melfina down and forcing him to retrieve Saiyo Wong, then later works with the MacDougall brothers when that alliance offers another route forward. Khan ultimately reaches the Leyline and chooses knowledge as his desire. Rather than returning with the others, he remains within its information system, effectively becoming part of the thing he spent the series trying to understand.