By the time the Mongol Empire had effectively conquered the world, Tatsu shook hands with Mongke Khan, which turned him into a pile of ashes and threw the nomadic empire into chaos. They then supplied their technology to the Mongols and ordered them to wreck havoc upon Europe. They traveled backward in time to the Mongol Empire and saved Mongke Khan from a fatal cannonball shot that originally killed him. In the aftermath of the War of the Three Powers, Crown Prince Tatsu and a team of engineers still loyal to the Empire used stolen Soviet blueprints to create their own time machine.