Gate of Ghosts

Historian David Sutter spends his time buried in a library of ancient I Ching tomes until the day he spirits away a curious manuscript and gets romantically involved with a ghost. Clues from the book and the ghost lead him into the maelstrom of the Cultural Revolution in search of the lost cauldron of Yu, whose power can create a new dynasty and bring down Chairman Mao's communist regime. But the Chairman will not go down without a fight, and he wants the cauldron, too. So the haunted scholar becomes a demon warrior at the Gate of Ghosts.