A drone flying over the Big Brother 18 house caused some paranoia among the houseguests.

Head of Household: Nicole Franzel

Nominees: Michelle Meyer and Paul Abrahamian

Other houseguests: Corey Brooks, James Huling, Natalie Negrotti and Victor Arroyo

While Sunday was mostly a quiet day in the Big Brother house, one thing got everyone talking. A drone carrying a blow-up doll with a message on it flew over the house in the afternoon. Michelle immediately ran inside for fear of it attacking them, while the rest of the houseguests were called inside by production, as is customary with any threat of outside interference that might impact the game.

Production informed them to not talk about the drone, but of course many houseguests couldn't resist. Natalie assumed the blow-up doll was somehow making fun of her, while both Michelle and Nicole were paranoid about the message, which they did not see, had something to do with the other one, in a game-related way. Nicole was particularly concerned that the message might have been to save Michelle, amid her plan to get her out of the house.

Meanwhile, James, Natalie and Michelle were still mostly blind to the fact that Michelle will be evicted on Thursday. James especially seemed to think that he, Natalie, Nicole and Corey were still in an alliance, despite the fact that Paul and Victor have been spending an absurd amount of time with Nicole and Corey over the past week. Not only that, James still thought that Victor was against Paul!

However, later in the night Michelle wondered to James about why Victor was hanging out with Nicole and Corey so much. James finally admitted that if Nicole used the Veto on Paul, then it would be a signal that James or Natalie were being targeted.

It remains to be seen when James, Natalie and Michelle will get the hint that Michelle will be evicted on Thursday, as well as what might happen with the ramifications of this knowledge.

Big Brother 18 returns with another new episode Wednesday at 8 p.m. ET/PT on CBS.