Jara makes a breakthrough when she receives another set of photos. Lausman attends a nix history lesson by Dr Magda Mrackova and learns about the 'magic water' of Vysehrad lake, hidden beneath Prague.

Jara breaks into a boat belonging to Lausman's protectors Eduard and Johana, steals some strange food items and sends them off to the lab. Dr Jech is confused by the results of his tests on Lausman.

A tank of algae is poured into the lake that supplies water to Prague, causing a humanitarian catastrophe. Jara is cured of her distraction, and Magda plots to become the next chairman of the council.

Magda tells Lausman she knows where the rest of the ancient scrolls are, but when he takes the bait and volunteers to retrieve them, peril awaits. Jara's hot on his heels, but will she arrive in time?