The Kathasaritsagara , or "Ocean of the Streams of Stories," is an 11th-century Sanskrit classic by Somadeva. Composed for the entertainment of Queen Suryamati, it is a massive collection of Indian legends, fairy tales, animal fables, and frame stories—most famously containing the genesis of the Sinbad cycle and the Vetala Panchavimshati (Vikram and the Vampire).