Today's Arctic Circle Canada and Greenland -- another world. It's a mystery, but also kind of a thriller. The author did a great job of engaging me on these various moments of danger that Edie/Kigga got herself into. I also really liked the moments of "tracking" -- really observing the environment and figuring out clues/whether things were safe or dangerous, etc. A brief but beautiful moment of Edie seeing the Aurora in Greenland. The plot got a bit complicated and maybe farfetched as it went on. I lost some of the connections of what was going on an emotional level with Edie and Derek (the regional police officer interested in lemming research) towards the end. The end felt a bit rushed. But it was an interesting ride along the way.