The Leviathan Chronicles tracks Macallan Orsel, a young genetic scientist in present-day New York City who discovers that immortality is not a fool's fantasy, but rather a reality for several factions of powerful immortals living among us. Across centuries and continents, they have battled for supremacy--and Macallan must suddenly grapple with a mysterious and lethal virus, a covert government organization aware of the immortals--and her own family's connection to both. In order to save herself and the immortals, Macallan must learn to use a key hidden within her own DNA. But a deadly secret has been kept deep in the bottom of the ocean for over a thousand years that could threaten not just the immortals, but all of mankind. thumb|400px|left|The Introduction Video to the Leviathan Chronicles.