Is That...A Heart?

Here is what happened last time on The Werewolf's Superiority

I walk back to the cave and start filming and measuring five feet to check where the spears could come from the walls. I walk to the tomb and inspecting everything. I touch it, and no spears come out to kill me. Roman gives me a great idea. If I try to open the tomb, the spears will come out to kill me. I agree with him and start to try and open it. I successfully remove one of the bars.

Roman says over the radio;

"Just because you do not see the puzzle, it doesn't mean that there isn't one."

"I know, Roman. And thank you for the advice. Are you getting the video?"

"Yes, Dr. Andrews. But the radio sound is much clearer than the video's."

"Okay, good. The rod is almost out of the hole, so here we go."

I put the video recorder on the steps, and I grab hold of the rob and give it one firm tug, and the rod comes out of the tomb. I fall on the ground out of the sight