What fun would the battle be without adversity?
Round 419: The beetles emerge at 100N100E. Radiance breathes, and the beetles dodge (rolled 23 Ref save), taking 24 points of force damage. The beetles have 103 HP remaining. Radiance can breathe again in round 421.
The beetles swarm all over Radiance. Radiance takes 16-5=11 points of damage from a multitude of bites. She manages to stomach all the beetles crawling all over her, due to her Great Fortitude (rolled 22 Fort save), but she cannot resist having her body dried out (natural 1 Fort save) for 5 points of Constitution damage. Radiance's Constitution is down to 12, and she has 57 HP.