Mystique By Sean McKeever Ultimate Collection (2014)

Collects Mystique (2003-2005) #14-24.
When everyone's favorite shape-shifting secret agent is sent to Europe to investigate a biotech company rumored to be using mutants as guinea pigs, she discovers a mystery far greater than anything she'd imagined! As Mystique and Shortpack get closer to their objective, they must confront a new revelation: that someone is selling transient mutants as guinea pigs, slaves and worse!