OOC:
Jasper has Light cantrip, does anyone take a lit lantern?
With the gloom ahead your remaining guide, the Foreman and the soldiers watched with slight trepidation, as the adventurers moved down the slope into Shaft 7. The main tunnel has several shallow branching tunnels that are easily checked and cleared. The descent was too difficult to retain a sense of measurement and the sounds of the rest of the active miners above had become a murmuring before falling away entirely, leaving the party in a claustrophobic silence.
As the main shaft reaches a markedly sharper slope, the party first sees a lunchbox set on a short and level cut in the wall, where a miner's lunchbox sits, knocked over and emptied of its contents. You all hear a sound.
[roll Perception DC 15]