Prak is an odd character who appears at the end of the story. While testifying in a court case, Prak is accidentally given an overdose of truth serum and begins telling ugly truths about the universe which cause him to be locked up in isolation to protect people from going insane from learning the truth. Arthur seeks out Prak in his mission to learn the secret of "life, the universe and everything," but he dies before he can give Arthur any useful information.