Troubled, you ask Sir Lope what the horn means. He gruffly replies, "Seems as if the Keep is raising an alarm. The guards we just talked to won't move a muscle, but any loyalists will certainly rally to the keep."
Acting quickly, you tell Sir Lope to position himself and his top lieutenants on the approaches to the keep, and to take command of any troops that come that way. You wait with some men another street or two down, ready to kill anyone who resists.
Amazingly, Lope and his commanders are able to interdict every single man heading to the keep, and to group them up and send them off on a "patrol." Obviously, these men of Owen will not join your cause, but he tells you afterwards that he just sent them on a route that will take them out of the city for at least 48 hours, if not 72. Given the situation, this is about as good an outcome as you could hope for.
You decide that you must yield to the necessity of sleep, and bed down for the night in the barracks of the town guards after you have made sure that all of your men are in town, either in the gatehouse or with you. Surprisingly, you are able to fall asleep almost immediately, and awaken refreshed at dawn, as you had planned.
First, you order the siege engineers to begin constructing some crude mantlets, as well as a mobile shelter for a battering ram. The men begin to get to work, but the leader comes up to you abashedly and admits that in their haste to leave, they left many of their tools and nails behind. They will try to do their best, but you realize that you will have very little protective siege equipment moving forward. You tell them to scour the town for equipment, but that will take precious time.
Undaunted, you tell some men to head to the bell tower and start ringing the bells, while you travel with Lope, Arthur, and some of your Rangers to the mayor's house. The man reluctantly agrees to carry your terms to Owen, and you advance to the square outside the Keep. He carries your terms to the keep, under a white flag. This all goes horribly south for him when an archer on the battlement looses a quill, striking the mayor in the shoulder and sending him sprawling.
Reacting quickly, you rush out with Luther, shielding yourself from what is now a rather steady stream of arrows. You manage to reach the man, grab him gruffly, and pull him back to the cover of the edge of the square. You send the mayor back to be treated, but you smile on the inside. Lope shares your enthusiasm. "Well, at least we have a damned good reason to kill the fool now."
How shall you proceed?