As Langdon deals with the events into which he has been thrust, Mal'akh destroys the Smithonsonian-sponsored laboratory of Dr. Katherine Solomon, Peter's younger sister, where she has conducted experiments in Noetic Science, in the process ambushing and almost killing Katherine in a cat-and-mouse chase, but Katherine manages to escape and meet up with Langdon and Bellamy. Eventually, when cornered by the authorities, Bellamy is forced to give himself up while Langdon and Katherine escape. Both are later apprehended by Sato's team. Following clues regarding Mal'akh's previous identity as Peter Solomon's psychiatrist, Dr. Christopher Abaddon, Sato allows Langdon and Katherine to rush to his mansion to confront him, but Mal'akh ambushes them and murders their CIA escort. Meanwhile, as he is being interrogated by Sato, Bellamy expresses belief that Sato is working with Mal'akh but Sato assures Bellamy that she is also pursuing Mal'akh in the interest of national security and displays evidence that visibly shocks Bellamy.