Jon Humboldt Gates will be at Northtown Books at 5 p.m. on August 20th, signing copies of his latest work - Before The Dolphins Guild - A Story of Heroic Efforts to Save Two Navy Submarine Crews Trapped Under the Sea in 1915 and 1916.

The dramatic narration covers two submarine mishaps - the H-3 submarine on Samoa Beach in 1916 and F-4 near Honolulu in 1915. It is based on original diaries by two crewmen involved in the events. One was Jack Agraz, a Mexican-American Navy diver, who lead rescue efforts from inside H-3 and also performed legendary dives to reach F-4.