The Clock Ticks On

How can civilization leave its mark on the universe? How could mere mortals bear such a weighty question? Why not first hear what three brilliant minds have to say? Chi Jiajia: Boil some water! Zhong Yi: Carve it into stone... Di Zixing: Alchemy. Make your choice within thirty seconds. Your decision will affect how the world line develops. Then the three of them will join you in an adventure about an apocalyptic disaster.