On the Set of the ‘Bones’ FinaleBy Daniel FienbergMay 17, 04:05 PMIt’s April on the set of Bones. The beautifully dressed stage that represents the Jeffersonian is bathed in a murky haze and smells of manufactured smoke and Chinese food. The Gormogon killer has struck again.[This story contains some spoilers and some speculation. Be warned!]To be fair, craft services deserves the credit for the Chinese aromas. The Gormogon is only responsible for the odor of sulfur, which is pumping from long tubes onto the set, setting the stage for the show’s third season finale, which will air on Monday, May 19.A bomb has gone off at the Jeffersonian, but I probably shouldn’t tell you who its victim was. I probably shouldn’t mention which regular member of the cast is wearing tattered gloves and having his or her hands slathered with KY-Jelly to simulate what looks to be a potentially crippling injury. I probably shouldn’t tell you what’s happened to David Boreanaz’s Booth in the aftermath of the bullet he took to the chest in last week’s episode, except to say that Boreanaz is the only major cast member I didn’t talk to for this story.Any context for the explosion and the events of the finale might, in fact, might be damning.As Bones creator Hart Hanson puts it, “We can’t have you getting the context. Because if you knew what happened at the beginning, it would be a disaster and if you knew what happened at the end it would be a disaster.”The most important thing that can be revealed about the finale is that not only will the Gormogon return, but the killer’s reign of terror will come to an end after a season of steady investigation.”He worked slowly into this,” reflects T.J. Thyne of the killer, whose appearances have been woven into the third season. “He’s been around a while at this point.”"I’m glad he’s back, though,” adds Tamara Taylor. “It’s just such a creepy, creepy storyline.”"Creepy” is, in fact, the first word that comes to several of the stars’ lips when attempting to describe the killer, known for his appetite for flesh-eating and skeleton sculptures.