Jericho Jones

Background
As a child, Jericho became sick with infantile paralysis. As a result, he could not breath by himself and was constricted to the iron lung. He would lay there all day and night for he could not get up and stare at the window and wait for his parents arrival. His parents visited him for the first year. Eventually, his parents stopped coming, and he was left solely in the care of the doctors.

One day famous American inventor Jake Marlowe came to try to help all the patients at the facility. He offered a option of an experimental drug to patients who were expected to never recover. During those experiments, every patient went mad and died, with the exception of Jericho. Because of this, he depends on a drug and alcohol complex machine beneath his skin to keep him alive. Some side effects of this are being 'superhuman' and being extremely strong, so he always tries to keep his emotions in check in order to prevent harming the people around him.

During his time in the medical facility he also helps his veteran friend move on to a better place. Appearance

Jericho is very tall and in the first book is said to stand at around 6'2" which is approximately 187cm tall. He is also said to be very muscular with ash blond hair. When Evie first meets him, she thinks he looks like a "severe angel from a Renaissance painting, come to life."

 Personality 

Jericho remains fairly closed off at the beginning of the series but as the series progresses more and more is revealed about him. He is referred to as a 'gentle giant,' because despite his muscular appearance, he is a bookworm and rather shy.

Evie O'Neill
Jerico and Evie both take an interest in each other when Evie first arrives in New York. Their romantic relationship fluctuates as Evie enters a false engagement with Sam Lloyd, and eventually ends after he attacks her at Jake Marlow's mansion while he is heavily dosed with the serum keeping him alive.

Lupe
Lupe is the drummer in an all black girl's choir that Jericho encountered while on the run him with Ling. Lupe and Jericho fell in love on the trip, beginning with Lupe teaching him how to dance. Jericho's relationship with Lupe is significant because she helped him get over Evie.

Sam Lloyd
Jericho and Sam's friendship began shakily, as the two spent most of the earlier books considering the other a rival. Jericho was jealous of Sam's charisma, and Sam envied Jerico's physical strengths. They also spend quite a lot of time competing for Evie's affections. However, they began to bond in their mutual determination to keep the Museum open, and become friends.

Mabel Rose
Mabel had a crush on Jericho for several years before the series began, and once Evie arrived in New York, she and Evie began a plan called 'Opperation Jericho.' Despite Evie's interference and even a slightly awkward dancing date, however, Jericho never considered Mabel anything other than a friend. Mabel got over him by Before the Devil Breaks You, and their relationship grew stronger without the pressure of something romantic growing.

William Fitzgerald
When Jericho left Jake Marlow and the experiment, Will took him in as a ward and gave him a place to live and work: the museum. Jericho sees him as a father figure and in return Will sees him as the son he never had. Their relationship grew rocky due to Will repeatedly hiding things from Jericho and the other Diviners, but his death was a significant loss to him.