I assume there are one or two kids here, who do random fetch-and-carry tasks or messenger work for patrons of the tavern.
"Boy! You there! Yes, you! Run and catch Sir Gendar and his entourage before they get too far. Let him know that the unpleasantness has been dealt with, and beseech him to return to the tavern so that we may get to the business of defending Knurl. There are two silvers in it for you. Off you go now!"
With that, the wizard sits down and grins at both of you. He is of average height, average build, and in every way physically unimpressive - but his eyes gleam with intellect and his voice hints at power. He is dressed in normal street clothes with a cloak thrown over, with little ornamentation save for a cloak clasp in the shape of Rao's crook. You see smudges of ink on his fingers as he reaches for his tankard.
"Gentlemen, my name is Thaddeus MacPherson, and Knurl is my home. I am surprised that you have both come so far but am grateful that you are here. Adventure and even treasure are of little importance to me at this point - my only concern is protecting Knurl from the humanoid invaders. I will not have our freedom be a brief span of days betweeen the fall of the Overking and the arrival of the greenskinned horde!"