The Uninvited is a mixture between a horror novel and an ecological thriller. The protagonist, Hesgeth, isan anthropologist who is used in industrial sabotage cases to find out the motivation for such acts and tries to link several cases he is attending to. What makes it puzzling is that in all the cases the people involved have stated one way or another that they were forced to do it. The culprit is sometimes evil spirits, sometimes it is a set of children who stay conveniently invisible. On top of these complex cases, Hesgeth also has to deal with an increasing number of - sometimes lethal - attacks by children and trying to tie the two phenomena together.

The book sometimes invokes chilling images and the atmosphere evoked is dense. You never get the full story behind the phenomena, but the author gives you enough to stimulate you to think about today's environment which could cause some of the events described in the book.