Wow in depth, with enough info to base an entire campaign around. It's nice to see an unusual enemy that has a fresh approach to achieving their goals, and really make players struggle to get a grasp on their capability and motivations.
A couple quick ideas to improve the appearance/presentation:
Putting the headers such as appearance, confrontation etc.. in bold would help a bit to highlight the different sections of the article and make it easier to find a particular area when skimming during a game session.
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Also, putting a line break in between each plot hook and bolding their titles would make the last text area a bit easier to read/navigate. (as it is it's a bit of a wall of text towards the end)