Things went pretty fast from there. Treevor drained all the land around the city and villages, as well as some of the land leading to the big cities. Treevor spent a day and a half enchanting the corrupt willow, using corrupt and darkness runes.
When he was finally finished, Athos delivered all the corrupted swords into his hands, causing him to fall into deep despair. Athos had not stood still in the meantime and successfully corrupted all weapons.
After another day of pure torture - I mean, runesmith - they were finally ready to go.
All the undead gathered in front of the gates, all the carriages and wagons lined up. The skeletons were armed with all the best items the city had to offer, the magic weapons that Treevor enchanted distributed among the army's mana users, but the best was left with the leaders of course.