It would be a dark and quiet cave, if the soft drip of forming stalactites were not drowned out by the din of battle. 

Usually, a swarm of wasps, even ones as large and fearsome as these, attacking a group of humanoids wouldn't be considered a "battle" unless one was anthropomorphizing the wasps a bit much. But then, usually wasps are a surface insect, not to be found this far underground. And none of these unfortunate humanoids had kicked a nest, or any of the usual things that hive insects in their natural, unguided state find provocation for violence. 

Nobody here is human, to be clear. About two-thirds of the group have a second pair of arms under the first, and wide eyes that require more shielding from the wasps than human eyes would. The other third have wings and ears with three points on them, like someone tried to depict an elf wiggling their ears and someone else misunderstood the instructions in implementing a creature.*

*Not in fact accurate. She fully intended the ear design as it came out.