My Empress Across a Millennium

Cole Carter activates Quadra Casket. Empress Selene Donovan besieged by Jurchen soldiers. Cole sends supplies. They develop feelings. Cole travels to past, learns of Zane's rebellion. He uses ibuprofen, trades antiques for firearms to help Empress defeat Jurchen/Zane. Returning to present, Mr. Han informs Empress trapped in mausoleum 1000 years. Casket damaged, passage severed. Cole breaks into mausoleum, reunites with Selene Donovan, waiting 1000 years.