Priscus Cordoba, David greets, in a formal tone as he notices the approaching Incubus. The Shadow was watching Hell move from his Perch in Heaven but Juan's arrival steals David's attention from the Infernal. The balance of power is a tug of war and Cordoba presents another challenge. Baying voices in the blood seek to claim dominance. Voices that are summarily ignored; controlled and locked away into the deeper recesses of the mind.
It's good to see you, David says amiably, What can I do for you?
Subtle adjustment in how he stands, brings Juan into a private sphere, for the moment, at least.