Alexandra Nelson was a scientist with the SGC and was captured and turned into a Goa'uld. After she is rescued and the Goa'uld removed she decided to join the Atlantis expedition when they needed more staff. There she meets Ronan.

Continuation of Scars. Specialist Ronon Dex and linguist Emma Rogers are enjoying the early stages of their romance on Atlantis when an unforeseen tragedy threatens to destroy it. With the Wraith attack on Earth looming closer, will their relationship prevail? Or will deeply held secrets and wounds from the past keep them apart?