The Mystery of “Sisters Of The Night” is expected to return to Fox News this week, but a host of mysteries is set to make the network’s primetime lineup. 

In a new episode of “The Rachel Maddow Show,” the network announced on Wednesday that the “Sister of the Nights” will return to its 8 p.m. time slot in 2019.

The new season of the show will take place after the conclusion of “Family Guy” in 2019, when the main cast of the series will be moving to a new home on the Fox network.

The series first aired in 2007, and since then, “Sons Of Anarchy” has become a staple on the cable news network.

It is still airing in syndication and currently has more than 4.7 million viewers.