Deep in the underdark, in the forgotten ruins of an ancient, reptilian warrior race, a shrieking mushroom was triggered, resulting in a mighty battle and the players having to listen to shrieking metal for several minutes. Muhaha.
Spectres arrived, drawn by the sound, their great claws raking the actual life force from the players. The spectres were killed over and over, only to return again in an endless cycle controlled by the sound of a ringing bell.
The bell? A bauble worn around the neck of a spectre praying in draconic at the base of a sarcophagus in the nearby catacombs. The party’s dragonborn decided to kneel beside the spectre, repeating the prayer, being taken over, and transported to the overwhelming presence of a Forgotten God.
Stuff… happened.
The dragonborn returned… changed. A peppering of black dragon scales amidst the copper. She’d gained a tail, elongated fingers. In her hands, a rough, savage axe she used on whatever was in the sarcophagus, resulting in a Very Big Boom.
At this point, the bard declared she was done, she wanted to go home, she hated this place and was going to join a circus.
Larry, the worg puppy, reminded her that she was part of the pack. Spectres gone and after a rest, the group decided to do some good ‘old looting.
…and stumbled upon a gelatinous cube birthing two babies. Suddenly, the cavern being spotless up to 10 feet made a lot more sense.
The cube engulfed the dragonborn and the bard, and started digesting Larry before it was brought down. Good girl, gelatinous cube.
As for the babies, the party decided to let them live and grow into deadly acidic jello cubes in their own right.
And in the distance, a tiny shrieking mushroom goes “eep!”
The Tome of Adventures 