Ghost Flower by William F. Merck II

The legacy of ancient alien castaways collides with a contemporary crisis on Earth in Ghost Flower by William F. Merck II, a genre-defying adventure of time travel, love, and destiny. More than 4,000 years after their intergalactic arrival, extraterrestrial descendants must help a team of researchers unravel a virological mystery and stop a devastating pandemic in its tracks, traveling back to the Rennaisance – including a dalliance with Shakespeare – to save the future. Despite some stilted elements in dialogue, the alternating narrative streams, imaginative technologies, and compelling cast of characters both human and alien make this creatively crafted novel both entertaining and fascinating, as it deftly combines lavish historical fiction with subtly drawn but inventive sci-fi.