"Thirst No. 1: The Last Vampire, Black Blood, Red Dice" is the first novel in the "Thirst" series by author Christopher Pike. The story follows the main character, Alisa Perne, as she goes through her life as a modern day vampire, even though she has been one for the last five thousand years. Alisa lives her life of luxury with secret bank accounts, and even changes her identity from time to time, in order to keep her secret life hidden.

She was Sita when she was originally transformed into a vampire by her creator Yaksha. She makes a vow to Krishna, her God, not to create any more vampires, but things get complicated when Alisa, as Lara Adams, falls in love with Ray. Now, Yaksha is back to hunt Sita, which further complicates the situation.

In the end, Sita has to break her vow in order to save mankind as a whole. In her final act, she destroys one of her past loves in order to keep the Earth from being overrun by vampires, but has to sacrifice another love in the process. She also decides she no longer wants an immortal life, but just once to be a mother once again. This causes her to perform an experiment to transform from a vampire into a human once again. What Sita doesn't know is if it works.