The Boy Favoured By Spiders
Deep within the city, there was once a very common drow family. They had no daughters, but they had three living sons. Their names have been swallowed by time, and so their first was nicknamed for this tale Tall, the second Sharp, and the third Dark.
These boys were very handsome, and their mother paid much of her money to a priestess to have their futures told. The answer was cryptic. "For Tall, the water. For Sharp, the blade. For Dark a lady of the Second House."
Their mother worried long and hard at this. Taken one way, it meant their deaths. Taken another, it would seem to promise good fortune. And so Tall was sent away to fish at the lake, Sharp to be a soldier, and Dark they kept at home.
The older boys were angry at this, and so they lured Dark out into the caves and left him to die, fearing he would surpass them.
While he was wandering in the caves, he saw a spider drowning in a pool of water. Remembering his duty to the Spider Goddess, he took off his tunic and let the end fall into the water, giving the spider a way to climb out. It scurried out, and then went back and forth, back and forth, until he followed it.
In time, it led him to an ancient treasure. He could not carry it all, and so he left much of it behind when the spider led him back home.
His brothers were jealous and enraged that Dark had come home rich. This only got worse when Dark happened to glimpse a noblewoman on the street, and she in return saw him. When she was finished speaking to him, he had given her his treasures, and had promised to bring more.
He returned to his house, and told his brothers about the treasure. They agreed to come along, though plotting to kill him and take all of the treasure for themselves.
They found the hoard, led by Dark... and then they killed him, and brought the treasure back themselves. On the way back, Tall slipped and fell in the lake. He drowned, weighed down by his prizes.
Sharp went on alone, but in his hands a jewelled dagger slipped and cut him, and the ancient poison on it killed him.
Things might have remained as this, but the noblewoman found in her chambers spiders weaving maps. She and her retinue followed one such map, and found the treasure, and with it Dark's body. She had her sister, a strong priestess, cast a spell of resurrection, and Dark lived again.
He went back with her, and became her consort, and never mourned his murderous brothers, who'd earned the ends to their prophesied fates. And from then on he lived in luxury such as he had never seen in the home of his birth.
A/N: This form of tale is very old, and appears with multiple variations, from Androcles and the Lion to any number of tales with princes or other protagonists pausing to help a beast that helps them in return. Personally, I think in this case Lloth just wanted there to be bloodshed for her personal amusement. She's like that.
