Trap: Spawn two Creeps within three squares of each spawning point.

Challenge: Spawning points with one or more Creeps within three squares may not suffer wounds.

Flavor Text: Ghosts swirled around the spawning points, creating an eerie blur. All arrows and spells were deflected by the ghostly shield. The heroes knew they would have to draw closer, and they approached the screeching wall of ghosts with caution, weapons drawn...