Jungle of Glass — Gerald J. Davis

Someone has kidnapped the Honorary Consul of Ireland in El Salvador and is demanding a big ransom. Ed Rogan, a tough-as-nails private investigator, is hired to find the victim before the man's heart medication runs out. In his quest for the dark answers to the puzzle, Rogan enters a deadly jungle of intrigue, deceit and treachery. The rebels are after Rogan, the military is after him and a beautiful woman is trying to kill him. The action in this fast-paced thriller moves between New York penthouses and El Salvador mansions in a dangerous and exciting search for a missing man whose days are numbered unless Rogan can find him in time.