With intelligence of Phraya Kankark, Phraya Tan gave up and agreed to promise that if human shoot rocket up to sky, you must make rain fall. If frogs sing, it is a sign that the rain falls on the ground. When human play kite, it is a sign that the end of rainy season. At present, there is a museum shaped toad in Yasothon. Villagers built it for respect and describe about the rocket Festival, and also the legend of Phraya Kankark