The Other Side of Time

From the front flap of the Walker HB: "Colonel Brion Bayard follows a blazing phantom figure down a corridoe of Imperial Intelligence Headquarters in Zero-zero Stockholm and stumbles headlong down The Other Side of Time, where he meets: The hagoons, hulking cannibalistic ape men, who plan to destroy the entire world of the Imperium; Dzok, from peaceful Xonijeel, who resembles a lanky, sleek-haired monkey and possesses fantastic scientific knowledge; and the lovely, lonely hypnotist, Olivia, who lives in a strange backward universe ruled by Napoleon the Fifth... Transposed from one reality to another, Colonel Bayard struggles to save his own world from an ugly, violent death... and encounters the strangest sight of all when he returns from null-time to Zero-zero Stockholm and the dark, deserted storeroom of Imperial Intelligence Headquarters."