When a fragment of an ancient manuscript is stolen from a Jewish library in Amsterdam, ARKANE agents Morgan Sierra and Jake Timber discover a conspiracy that stretches back to the days of the Portuguese Empire, and a hidden Order of monks who have protected Eden for generations.

Meanwhile, a radical ecological group seeks the powerful Seed at the heart of the Garden intending to restore the world to its natural state with no thought of the consequences for humankind.

From Lisbon to Macau, the Caribbean and on to Brazil, Morgan and Jake must hunt for the fragments of the manuscript and find their way to the Garden of Eden before those who wish to turn its secret into blood.