Though there was no sound then then the metal spikes hitting the black granite stones that made up the wall, there was something off on the feel of the wall's sturdiness.
Still nothing could be noticed on it....

"Guess were better go back to the main room and wait" Mech said disappointed.
The 3 then followed back to the end of that tunnel and entered the room where they all had split up a while ago.
It was about 10 minutes of having to listen to Mech's rambling on the jeep to David, trying to see what a Cyborg thought about his customizations on it before the rest of the group returned from the same tunnel Symbio had left in.
"Report" was all Drake said.
"Dead end but something seemed off, David checked the wall but we did not find anything that was a clear sign" Mech replied, bummed that his talk with the Cyborg was over with (even though David may not have been able to follow him at all)
Drake looked at David then.