Sagan in search of Sarasvati ends up in Muztagh Ata and encounters Chinese guards guarding the treasure of ancu. There were other seekers of ancu before him. He ends up in a bizarre court case in America. He visits Disney World Animal kingdom and takes a ride on the Kali River rapids. As the waters splash over him, he finds a friend on the ride. That friend from Kidarankondan guides him through the story of about seven millennia of people in search of ancu which is called amsu in an old human document called the Rigveda. Sagan finds the alchemical formula for making gold from mineral rocks of Muztagh Ata.