Last night's Criminal Minds continued what could well be Paget Brewster's farewell storyline. In "Coda," Ian Doyle made his presence felt, leaving Prentiss scrambling.

The intensity builds next week with "Valhalla."

After a series of suspicious murders, Prentiss suspects her old Interpol arch nemesis may be involved, which makes her fear for the team's safety as he closes in on her.

Check out CBS' promo for the episode here and share your predictions with us regarding this ongoing arc. Could we be seeing the last of Emily on Criminal Minds?

Steve Marsi is the Managing Editor of TV Fanatic. Follow him on Google+ or email him here.