Marcus had triggered a trap, which they almost didn't solve. The trap was a puzzle in itself, and they had limited time to solve it.
"Nnngggh!! Hurry up, both of you!" Meredith was desperate at this point, feeling that she is being dragged along with Atlas' weight. "I can't hold on much longer!"
They had to work together and think quickly. They knew that failure was not an option.
The clock was ticking and Marcus didn't know what to do as he was told to be in place before the situation worsens.
Just as Austin was busy doing the puzzle, the voice from earlier on echoed in the room again, further pressuring them and distracting them as it repeated on and on while they were struggling.
"The traitor is acting quickly; think now and reflect. A jealous heart is dangerous and not one to be trampled with."
