Resident Evil - Underworld
Resident Evil: Underworld is a novel written by S.D. Perry in 1999. Underworld is the fourth Resident Evil book written by S.D. Perry, the fifth in chronological order, and the second which is not based directly on one of the games.
Leon S. Kennedy, Claire Redfield, and the survivors of the Caliban Coveincident are en route to Europe to rendezvous with the other surviving S.T.A.R.S. members for further operations against the evil Umbrella Corporation. While in the air, their plane is redirected by the mysterious Trent, an enigmatic figure who has been guiding and manipulating events throughout the entire series of novels. Trent informs the group of an Umbrella facility in Utah, used to test and train the company's experimental biological weapons. The facility's overseer, a man named Reston, is one of three people in the world in possession of a codebook which would allow access to all of Umbrella's most secret documents. Trent wants the group to infiltrate the facility, steal the codebook, and take down Umbrella once and for all.
Reluctantly agreeing to Trent's plan, the group makes their way into the Umbrella facility. They soon find themselves trapped within the facility's testing area, forced to trek across four massive, artificial environments (called The Planet) while evading Umbrella's deadliest new monsters...