Lights:The posse spies a flock of buzzards circlin' 'round and 'round a spot in the road ahead.

Camera: Upon investigation, the hombres find the corpse of a man with his chest tom open, all that's left of his horse is a dried, bloodless husk. Inside the man's satchel is a letter of distress addressed to the sheriff of the next town, which is a three-day ride in the direction the party was coming from.

Action: The note is from a small pioneering village about six miles from here. It reads:

Dear Sheriff:
People is dying. Please send help. Aaaahhrrrg!

When the posse investigates they will come upon a ghastly scene of death and carnage. A viscous black goo drips from the walls and rafters of most of the village.

Several of the pioneers are encased in the icky stuff, alive but not at all well. Of course, when one of the party members approaches one of the unfortunate colonists, the victim's chest will erupt and a giant black leech will come a-burstin' out!

The independently mobile leech will attach itself to the nearest living host and given sufficient time, will grow to ten times its original size; about 10 feet long! If it attaches to a host, the leech will implant its eggs and in a day or two, a whole new leech will come a-burstin' out!

A pond on the edge of the town is the spawning ground of the little buggers and there also lies the big mamma leech. The party will need to exterminate the vermin or the leeches will eventually suck the blood out of the entire world!

By the way, they hate fire!