The mysterious package is a rough brown paper bundle with something sloshing around within. The contents are a sealed clear container with a green, slimy substance inside, seeming moving of it's own accord. This is a parasitic slime, a rare creature that will search for a host before entering their body and growing in size, effectively fattening up the host. This entire operation is slightly sketchy, and there is severe danger involved, but the user needs the revenue to make this month's rent.