The Golden Rings are Time Travel Devices that appear in The Iron Empire and Eternity. The first Golden Ring appeared in the end of The Iron Empire, when a mysterious man gave Tilda a Golden Ring, which may have allowed them to travel to different dimensions to recruit the Dak and Sera clones. The second Golden Ring was carried by a Fake Sera who convinced Dak to pilot the Ring to go to the discovery of the gunpowder in Ancient China, where fake Sera drugs Dak through cheese fllled with drugs. They also go to the creation of the hydrogen rocket where Dak escapes and travels to Greece to seek Riq. A fake Dak also approaches Sera and drugs her with tamales, and travels to Galileo's trial. She also escapes and heads back to Riq.