The Curse of the Wendigo is by Rick Yancey. The second book in The Monstrumologist series. Dr. Warthrop receives a plea from an old friend to seek her husband who has gone missing in the Canadian wilderness seeking a mysterious creature that feeds on human flesh. Even though the Dr. does not believe in the creature's existence, he and Will Henry head north to rescue his old friend and discover a terrifying truth.
Ratings: 9th grade - 8 out of 10 - V (violence) - AC (some mature thematic content).