Jack and Parson seem to be quite cordial. They haven't been seen having much interaction until recently. Parson seems to understand about two thirds of Jacks witticisms, which is more than most people. They have worked together to develop new tactical concepts, with Jack using his Foolamancy to visually simulate the movement of units and outcomes of battles as calculated by Parson's Mathamancy bracer. Since they started the simulations, Jack's opinion of Parson has risen dramatically. At one point he muses that Parson explaining the phrase "lateral thinking" to him is enough for him to consider himself forever in the warlord's debt.