Booth likes to gamble, a lot. But this time around, his problem is threatening his marriage even as Brennan's second pregnancy becomes risky, according to the "Bones" season 10 spoilers.

Stephen Nathan dished "Bones" season 10 spoilers to TVLine as he said that there's going to be big changes in the second half of the season.

"We will be dealing with Booth's gambling problem and it will have repruccussions for Booth and Brennan's marriage that will not be easily resolved," he said. "We will also be catching a glimpse of Angela's real name."

Cartermatt noted, "This is almost definitely not the sort of time in which you really want to see this sort of problem rise to the surface, mostly because of the sole fact that Emily Deschanel's pregnancy is being written into the show."

Booth's gambling problem will make it doubly difficult for Brennan who's undergoing a difficult pregnancy as well.

According to the "Bones" season 10 spoilers from TV Guide, creator Hart Hanson said they deliberately wrote the script to make Brennan's pregnancy different from the last one.

"She is really pregnant, so we have to make a meal out of the fact that she's very, very pregnant," he said. "She sailed through her last pregnancy. She's going to find out that not all pregnancies are the same."

In addition, the Jeffersonian team will deal with a very different killer this time around.

"Our other serial killers have existed for great, huge arcs, so they've had to be quite complex. This serial killer does not stick around for very long, so that killer's motivations are a little more clear and not as bizarre as we've had before," the creator added.

Watch out for more "Bones" season 10 spoilers which will be published here when they come along ahead of the series' return on March 26 on Fox.