Lee Martin: Hal's Own Murder Case (USA 1989)

From the Publisher:
When Fort Worth Police Detective Deb Ralston comes home to find a cryptic note from her sixteen-year-old son Hal announcing that he and his girlfriend, Lorie, have decided to spend their spring break in Los Alamos, she is furious. Hal has always been a bit scatterbrained, but this is the first time he's ever pulled a stunt like this -- and Deb is determined it will be the last. Wanting to kill Hal, the pragmatic Deb realizes that she must first find him and fetch him back to Fort Worth, and so, disregarding the fact that she is eight and a half months pregnant, Deb is soon hot on his trail.

But in the small town of Las Vegas, New Mexico, that trail comes to an abrupt and bloody end, as Deb discovers that Lorie is missing. The body of a murdered teenager has been found in Lorie's sleeping bag, and Hal is in jail on suspicion of murder.

Desperate to find Lorie and determined to exonerate her son, Deb joins forces with Las Vegas Police Chief Alberto Salazar to discover the identity-and the killer -- of the murdered girl, and to find out what happened to Lorie.

Lee Martin: Hal's Own Murder Case. A Deb Ralston Mystery. St. Martin's Press, ISBN: 031202925X (August, 1989), 186 p., $14.95.