Vyasa

“ After that he attained the body of a Preta-Sarpa, a snake-ghost. The only thing he was able to think about was his wealth, which was buried close to the house where he had lived. He had not even informed his own family of the whereabouts of his wealth. In the form of a Preta-Sarpa he resided at the place where his wealth was buried, so that no one else could take that wealth. After some time he became tired of being trapped in the form of a Preta-Sarpa, and he appeared in dreams to his sons, requesting them to help him. ”

“ While he was sleeping, a snake came and bit him. When his sons and relatives realized that a snake had bitten him, they called for the doctors and mantra-chanters. But no one was able to help Shankukarna, and shortly he died. ”