Catastrophic Skeleton Infestation

Description
The problem has gotten even worse, and rogue Skeletons have run amok in a giant swarm. Snuff them out, and you will have my thanks!

Counters

 * Swarming Skeleton
 * Swarming Skeleton
 * Swarming Skeleton
 * Swarming Skeleton
 * Swarming Skeleton
 * Swarming Skeleton
 * Swarming Skeleton
 * Swarming Skeleton

Rewards
You will gain:
 * 100 adventure combatant experience

One of the following:
 * Army of the Darkness Insignia
 * 5 - 10 Animaflower Bud
 * 5 - 10 Celestial Acorn