The gnome looks at you for a second, and a pipe become visible dangling from his mouth. "Whoo, doo, yoou doo."
"Minames Terry Fiddleberry, and if you are who I think you are, glad to meetcha. The drawbridge i'drop in a sec, and then you can go up. One more bomb first."
He holds out his hands and is bearing a watch matching the one in the group's possession.
After a moments delay, another explosion goes off above, this one near the central tower. Terry looks at you and then up at the rolling smoke coming from his pipe. "That'll wake 'em up. Those spikes shoulda taken care of the others, or at least scared them and dumb'dem'def. Jake and Oswin will push the bridge down now, and hopefully those items from the Judge will have shaken things up enough to make this possible."
After another moment passes, the huge drawbridge starts to push itself off over the side of the fortress, slowly lowering towards the ground. It's crooked, due to a lack of strength on the two halflings aboves part, but it eventually comes crashing down into the mud. It's twelve feet wide and twenty five feet long putting it at about a nice soft angle for climbing, though it looks like it could be better if the thing had come down straight.
"That judge in Orussus gave us four spikes, they turn invisible after you plant them, and then they explode when something moves by them. We decided to put them all over the camp, cept that we made sure to put one right under the door at the tower so that the first person to step out, hopefully that ogre, bites the dust quicker. Then we all hide, and wait for the others to come. Then we'll all go up there and gang up on him and whatever's left of his men! Good plan, doncha hink?"