Jericho is very tall and in the first of many letters from Mabel -- is said to stand at around 6'2"-6'4". He is also said to be very muscular with ash blond hair. When Evie first meets him, she had wrote that he looks like a "severe angel from a Renaissance painting, come to life."
You are a new addition to the group of Diviners, though he seems to be the only one open to you. Evie seems too infatuated with partying and being a flapper than actually getting to know you. Sam is interested by you, but he's still trying to keep Evie from getting herself arrested on accident. Will is as cold as usual to you and the others, though he finds it funny that your divine power is so simple. At least, it seems simple to him. Theta and Memphis you have yet to meet, though you hear good things about both of them.
You're currently fleeing a mob of angry cultists with weapons, and are stuck in a hotel room with Will and Jericho. Of who, both are asleep. But you're still worried about him, since he had been shot, but what's more worrying is that you saw machinery, not flesh when you saw the wound. You sit on the other side of the bed next to a still, sleeping Jericho.