What could be worse than facing bears, blisters, and raging waters in the wilderness of the Pacific Crest Trail? A lot and it happens in the book “Reckoning at Harts Pass,” a novel by Elizabeth G. Macalaster. Macalaster and the book’s technical advisor Dan Sayner will offer a lively and engaging presentation on the Pacific Crest Trail, and the story’s relevance to today’s FBI and threat of terrorism, Tuesday, Aug. 13, at 7 p.m. at the downtown Camden Public Library.

In the book, retired FBI agent Luke Chamberlin is hiking the Pacific Crest Trail from Mexico to Canada. Part way up the trail, an urgent message from a stranger indicates that trouble lies ahead near the border with Canada. Luke sets aside his unwillingness to get involved, and puts together a renegade team of law enforcement officers to check it out.

Macalaster began her writing career as a science journalist. Married to an FBI agent, she and their two children moved all over the United States as her husband transferred from post to post working in counterintelligence and counterterrorism programs. She has written a number of award-winning children’s nonfiction books with another author under the pen name Ryan Ann Hunter. She and her husband split their time between Vermont and Maine where they are avid rowers and hikers.

Sayner spent 21 years as an FBI agent working mostly in counterterrorism and counterintelligence areas. He worked on a number of espionage and terrorism cases including the 1993 World Trade Center bombing; the 1994 Unabomber case; the 1998 Peter Lee spy case; and the 2003 Katrina Leung double agent case. He retired in 2004 and that year hiked the entire Pacific Crest Trail.

Courier Publications’ A&E Editor Dagney C. Ernest can be reached at (207) 594-4401, ext. 115 or dernest@courierpublicationsllc.com.