Caligo

This is a prequel story to [b:Malum Discordiae 60420033 Malum Discordiae (Tennebrose, #1) Ashlyn Drewek https://i.gr-assets.com/images/S/compressed.photo.goodreads.com/books/1644898091l/60420033.SX50.jpg 92565628] that gives a little more background on the old town in the forest mentioned a few times in that book. When Cash and Graeme end up there in the latter half of the book they make mention that a school archeological team was working there and were all brutally murdered but one, leaving all of their equipment behind. This gives more information on that survivor and what happened, though is still fairly open-ended. It's deliciously spooky though. I read this after Malum so I can't tell if it's better to read it before or not.