The 'Reign' Royal Family Have So Many Secrets That Are Coming Back To Haunt Them

Bash (Torrance Coombs) keeps warm in a winter coat with Kenna (Caitlin Stasey) in this new still from Reign.

In “The End of Mourning”, as Mary (Adelaide Kane) and Francis (Toby Regbo) investigate who was behind the poisoning of King Henry (Alan Van Sprang), they unearth secrets of the past which force Mary to confront her feelings for Cond� (Sean Teale) as she attempts to move forward.

Catherine (Megan Follows) finds herself in the middle of a romantic triangle when the Duke of Guise (Gil Darnell) returns, which forces Narcisse (Craig Parker) to commit a hideous act out of desperation.

Meanwhile, Greer (Celina Sinden) finds herself in a situation she never fathomed in order to survive.

“The End of Mourning” airs TONIGHT @ 9PM ET/PT on The CW.