VIDEO: Sneak Peek of REIGN's Midseason Finale on The CW

On REIGN's upcoming midseason finale, airing Thursday, Dec. 12, and titled "Fated," Nostradamus (Rossif Sutherland) tells Mary (Adelaide Kane) of his prophecy that one among them will die soon, which causes Mary to make a decision that will forever change her relationship with Francis (Toby Regbo). Clarissa (guest star Katie Boland) becomes bolder with her endeavors, while Kenna (Caitlin Stasey) informs Catherine (Megan Follows) of Diane's (guest star Anna Walton) plan for Bash (Torrance Coombs), which ends up backfiring. Alan Van Sprang, Jenessa Grant, Anna Popplewell and Celina Sinden also star. Fred Gerber directed the episode written by Laurie McCarthy (#108).

Check out a first look below!