The Longer the Thread

John Putnam Thatcher solves a murder at a garment factory in Puerto Rico. The usual competent mystery, less entertaining than some of the JPT's set on Wall Street.

John Putnam Thatcher of Sloan Guaranty Trust is in Puerto Rico looking into a clothing company called Slax which recently opened a Puerto Rican plant now subject to sabotage when the foreman is murdered.

from Goodreads: Corpses are bad for business, as John Putnam Thatcher, senior vice-president for Sloan Guaranty Trust, found out when he investigated the affairs of Slax Unlimited, a Sloan-backed plant in Puerto Rico beset with some very suspicious "accidents." With $3 million of Sloan money at stake, there was nothing for Thatcher to do but go down to San Juan and investigate. What he found was a body in the front office, violence in a fiery festival, and a ransom note to the governor of Puerto Rico. And for Sloan's premier investigator, murder was decidedly not conducive to business.