Dark Swan — Gena Showalter

In Gena Showalter's Otherworld Assassins novella, Dark Swan, Lilica Swan isn't quite human or otherworlder; she is the best--and worst--of both. She is willing to do whatever proves necessary to save her sister from the seductive and deadly Alien Investigation and Removal agent, Dallas Gutierrez, even bond her life to his...effectively wedding him. But without consummation, the bond will fade. Can Dallas resist his insatiable desire for the powerful beauty? Or will she lead to his ultimate downfall?