For Example
Title: Dark Pasts

Author: lizandzackfan

Pairing: Alec/Liz

Rating: Mature

Category: Roswell/Charmed/Dark Angel X-Over

Disclaimer: I don't own any of the "Roswell", "Charmed" or "Dark Angel" characters.

Summary: What if someone else had walked in when Tess killed Alex, and not given very much time she killed her too. This takes place right before Tess killed Alex in Roswell, After Prue died for Charmed, and After Max escapes from Manticore in DA.