The drone hovers in front of Brucey's eyes, close enough to force him to cross his eyes a bit to maintain eye contact with the tiny machine. The tiny thing jumps up to hover in a fixed position above Brucey's head and stays there, constantly adjusting itself to stay facing the direction that Brucey is facing.
Brucey and Ineko arrive at the cave after a few minutes of walking, and silencing of the grimm in Brucey's arms. "Shhush... little one, just stop squirming." He said as he increased the pressure of his forearm against the grimm's throat, before the the monster's thrashing ceased. Brucey and Ineko came to halt at the entrance of the cave, shortly followed by a drone flying in and coming out as quick as it went in.
"THE LIGHT LEVELS IN THE CAVE ARE LOWER THAN 0.389 LUX." Ineko announced with a yell, before his drone flipped over in front of him and Ineko's tools appeared. He began to work on the small drone with speed that baffled Bruce."How does he move that quickly without fear of making a mistake up?" Bruce thought to himself. Ineko moved his hands away as the drone slid a little panel back closed on it's underside and suddenly righted itself. It's front ignited and shined a light enough to brighten the cave enough to walk around without fear of tripping or bumping into walls.
The trio entered the cave and walked downhill for about five minutes before reaching a 90 degree drop. Brucey looks over the ledge followed immediately by the drone accompanying bruce as a lantern, illuminating the subterranean hole. "It smells like Grimm." Brucey states. He looks at the walls that are far too slick to climb down at any reasonably slow rate. Brucey thinks about how to slow his ascension, as he wouldn't want to recklessly charge into unknown death.
Brucey suddenly thought of something ingenious. He kneeled down and opened the right cerberus jaw and drove it into the rock near the top of the hole, he then rose up to his feet and tugged hard at the the chain connected to it and jumped off the ledge while keeping both hands on the chain connected to the right jaw and rappeled down the side of the vertical cavern.