Eventually, Xin Zhang moved to America with his stepson, claiming the Makluan Rings for his own. However, sixteen year old Temugin, now calling himself "Gene Khan", retook the rings and his destiny. Working with Tony Stark whose father, Howard, had been killed in a plane crash; he managed to recover the remaining four Makluan Rings, Tony passing all but two of the tests that protected the rings. One was in New Jersey, United States; another was in Greenland; another was hidden deep inside a volcano; and the last one was in Machu Picchu, Peru.