This is the first of many levels that will feature monster generator. From the start head outside and star on the first generator in site. Keep in mind of the Phantoms flying around. So try and keep the numbers low to keep them from forming the pentalpha. This won't be easy while the generators are active, as the targeting will always focus on one of the generators. When the generators are taken care of, focus full attention on the remaining Phantoms To complete the level.
If there are any items leftover grab them. There is a ruby artifact piece on the main floor near the back on the right looking out over the ledge. On top of the archway of the entrance is an ancient scroll, which will discount the price of any spell or upgrade purchased. Get them and exit the area.