So guys, the original plan was like this:
Shorus surprises the soldiers and draws their attention towards himself (squished few of them with the door, killed another 10-15 at the first seconds of the battle while they were surprised), at this time the group was suppose to slip away before the guards understand what happened (for example with the help of the dark elf and her blanket of shadows).
Shorus was suppose to stay behind and continue to draw the guards attention and either collapse a wall or something to cover his escape or collapse under the wounds and fatigue and be left for dead by the guards.
But given the fact everybody stayed and are fighting, what's the new plan ? Spark's wagons? 
I do want to understand the plan before I post... I can play nice with Shorus collapsing at some point and get shoved into a wagon by Spark's mercenaries or I can collapse some rocks or create a small avalanche to shift the stakes a little.