Strange Intruders (English Edition)

From the gray area between realities, strange figures emerge. Djinn, shadow people, grinning men, pukwudgies, black eyed beings. These and many others have been encountered through the ages but their true agendas remain unclear.
They appear unbound by our natural laws, and, in fact, seem to relish breaking the natural order of things as we understand it. In the wake of their intrusions, questions reamin.
What are they?
Why are they here?
And will they return?