The next episode of "Vikings," "The Usurper," will bring trouble to the fleet.

According to Christian Times, the synopsis said, "The fleet returns to Kattegat to discover tragic circumstances await." 

And though viewers of History Channel's series "Vikings" have seen several characters die on the show, Episode 4 featured a main character's death, according to International Business Times.

Episode 4 of Season 3 is titled "Scarred." In the episode, viewers saw the death of beloved character Siggy, who dies while saving the lives of Ragnar's children who had fallen through the ice and into freezing water.

When Siggy saw the children fall in, she immediately dove in after them and saved their lives from an icy death. Jessalyn Gilsig, who portrays Siggy, told The Hollywood Reporter that she knew that her character would act this way.

"When she first goes after the children, it just speaks to who Siggy is," she said.

"She just does what anybody would do. The children are falling through the ice, and she knows that unless she goes in and gets them, they're going to die," she added.

After saving the children, Siggy starts to realize she is in a near-death situation. She then starts having a vision of her daughter Thyri. Thyri died of the plague in Season 1.

Siggy's vision convinces her to surrender to death and "let the Gods take her," so she could re-unite with her family.

"It's so unexpected and such a great honoring of the backstory that (writer) Michael [Hirst] created," Gilsig said. 

Gilsig actually was the one who suggested her own character's death. She admitted to going to Hirst and telling him that she missed her family. Hirst was kind about her request and came up with a storyline for Siggy's death.

Siggy's death is not gruesome though. Instead of a bloody death, her sinking into the water is quite artistic.

"Suddenly, in this hole in the ice, she's caught between these two worlds. She can fight to pull herself out of the situation, or she can let the fates take her, and hopefully be reunited with her family. She's such a loner. She's such a solitary figure. She's lost so much. I think she makes that choice to give up the fight," she told Entertainment Weekly.

What do you think about "Vikings" deciding to kill off one of the main characters of the show? Leave a comment below.