The investigation begins when Dr. Anna Beck, a physicist who mysteriously disappeared, sends him a cryptic message containing a sequence of numbers. Partnering with hacker Isla Qin, Eren traces the pattern across manuscripts, paintings, and scientific diagrams. Their search leads to the Lindemann family—a wealthy pharmaceutical dynasty that has been collecting cipher fragments for generations. At a scientific symposium in Geneva, Eren encounters Sophia Lindemann and realizes there are multiple factions searching for the complete cipher. Following coordinates embedded in the pattern, Eren locates an abandoned observatory where the celestial alignment reveals the first page of "The Solace Doctrine"—revolutionary scientific principles that could transform human understanding of reality or create devastating weapons.