Elwin, the Elona map location behind the main castle on the way to the mages tower CAN be kited. The amount of skill and patience required depends on the troop guarding it. The easiest time i had (about 15 mins!) was Horsemen. The hardest was Archmages ( almost 30 mins!).
You need to approach as close to the left side as the terrain allows and then turn around to the right and slowly edge your way out. Good luck.
