Excursion to Tindari by Andrea Camilleri

The fifth in the hit Italian crime series, Excursion to Tindari is another darkly comic detective story featuring Inspector Montalbano.
Maybe a phrase, a line, a hint somewhere would reveal a reason, any reason, for the elderly couple's disappearance. They'd saved everything . . . there was even a copy of the 'certificate of living existence', that nadir of bureaucratic imbecility . . . What was the 'protocol', to use a word dear to government offices? Did one simply write on a sheet of paper something like: 'I, the undersigned, Salvo Montalbano, hereby declare myself to be in existence', sign it, and turn it in to the appointed clerk?
A young Don Juan is found murdered in front of his apartment building early one morning, and an elderly couple is reported missing after an excursion to the ancient site of Tindari - two seemingly unrelated cases for Inspector Montalbano to solve amid the daily complications of life at Vigàta police headquarters.
But when Montalbano discovers that the couple and the murdered young man lived in the same building, his investigation stumbles onto Sicily's brutal 'New Mafia', which leads him down a path more evil and more far-reaching than any he has been down before.
Excursion to Tindari is followed by the sixth novel in the Inspector Montalbano series, The Scent of the Night.
PRAISE FOR THE SERIES
"A magnificent series of novels" Sunday Times
"There's a deliciously playful quality to the mysteries Andrea Camilleri writes about a lusty Sicilian police detective named Salvo Montalbano." New York Times Book Review
"Camilleri as crafty and charming a writer as his protagonist is an investigator." The Washington Post
"The books are full of sharp, precise characterizations and with subplots that make Montalbano endearingly human ... Like the antipasti that Montalbano contentedly consumes, the stories are light and easily consumed, leaving one eager for the next course." New York Journal of Books
"This series is distinguished by Camilleri's remarkable feel for tragicomedy, expertly mixing light and dark in the course of producing novels that are both comforting and disturbing." Booklist