If you ever felt the need to bring biological warfare to DnD and all the diseases you find are boring then this supplement is everything you need. Create your own diseases by combining this diabolical guide and your imagination to create something out of the plague plane.
The whole module is well thought and from the first paragraphs you can understand that the authors put a lot of thought in it. 5/5 stars.
[5 of 5 Stars!]