What are the three forms of detection in the book, The First Eagle?

• The first of the clustered "detection" themes in The First Eagle involves the search by "the dedicated scientist," Dr. Albert Woody, for the details of how certain individuals in a "reservoir" rodent population are able to evolve a natural immunity to Yersinia pestis, the bacterium that causes bubonic plague.

• The second form of the theme of detection involves the police search for the murderer of Officer Kinsman and for the missing person, Catherine Pollard.

• The third form of the theme of detection involves the search by both Chee and Leaphorn for love and companionship.