Hijack Log is a note found in a laboratory inaccessible without defeating a Horde Beacon of zombies in a secret chamber in the St. Petersburg Metro system
13:42: No positive response to our modified vaccine prototypes, it's adjusting too fast. If anything they seem to be further mutating compared to the control - one is growing acid glands, another is generating electricity and another even taking on fireproof properties.
- This laboratory may have been the source of the infection
- The crystal(s) that are displayed in the laboratory and the secret chamber may be the artifact that was bought from the mine in Dima's Notes.
- Finding the secret chamber and getting to the laboratory is required to achieve the Soul Crystal achievement.