There's a new twist in the Big Brother 18 house, and all 12 houseguests are taking advantage of it.

Head of Household: James Huling

Nominees: Bridgette Dunning and Frank Eudy

Other houseguests: Corey Brooks, Da'Vonne Rogers, Michelle Meyer, Natalie Negrotti, Nicole Franzel, Paul Abrahamian, Paulie Calafiore, Victor Arroyo and Zakiyah Everette

The Big Brother houseguests received a message on the living room screen Monday, revealing that there is a secret power in the house, prompting them to start looking for clues. Many of the houseguests went searching around the house for clues, but it was Paul who discovered the answer first. The answer was hidden in various posters throughout the house, with all the posters' green words spelling out "Discover Secret Destination Departing NOW!" On the Departures board the "flight" to Paris says it is now departing, and it has the number "211" next to it.

Paul discovered this and went to the phone booth and dialed the number, at which point he heard a message about going into a secret room. Then, a tunnel opened up at which point Paul climbed through it and entered the room. The room was filled with 12 tickets with a different number on each. As explained, 11 of these 12 tickets were one-way tickets, which means once you are evicted, you stay evicted. However, the other one was a roundtrip ticket, meaning that after you are evicted you can come right back into the house.

Houseguests can only open their ticket once they're outside with host Julie Chen, otherwise it becomes void.

Paul nabbed a ticket and came out of the secret room, with other houseguests waiting their turn. But Paul decided to be a little too sneaky in a not-very-subtle way as he literally tried to block Frank or Bridgette from getting into the phone booth. He also acted dumb to Natalie when she tried to get into the phone booth, and much of the house became very suspicious of Paul.

Regardless, everyone was able to figure out the secret code, either through their own sleuthing or by people telling them. So all 12 houseguests now have their own ticket, which should make for some fun paranoia.

Big Brother 18 returns Wednesday at 8 p.m. ET/PT on CBS.

Tags: Big Brother Reality TV CBS