Almost too easy

Stone shattered and the darkness was rent asunder as the ball of crimson flame exploded against one of the roughly hewn walls of the chasm. Like kicking over an ant's nest they swarmed out. The huge hulking scaled monstrosities that occupied the hive-like mass of tunnels. Kobolds, misshapen hybrids of dragons and lesser creatures, screamed out in furry as they converged on the trio.