Aeneas moved by the sudden sight, asked in his ignorance what it might mean, what was that river over there and all that crowd of people swarming along its banks. Then the ghost of his father, Ankhises said:–“They are the souls who are destined for Reincarnation; and now at Lethe’s stream they are drinking the waters that quench man’s troubles, the deep draught of oblivion… They come in crowds to the river Lethe, so that you see, with memory washed out they may revisit the earth above.'”
Lethe’s Draught is as clear and flavorless as water, though holding a bottle of it to one’s ear reveals a faint whispering. Drinking this potion causes the imbiber to forget the events of the last several hours. Consuming two doses at once increases the effect to several weeks, and three causes complete, permanent amnesia.
A more concentrated distillation, Lethe’s Essence, can be used as an applied poison by thieves, though the effects are limited to only about an hour.