The Cambell joined in the search. Depth set charges were sent down. Seeing the disturbance in the water where the underwater explosion occurred the DEs would scour the surface of the water for evidence of a hit. This U boat captain was clever. The encounter had now gone on for seven hours and daylight was creeping over the horizon and the crew exhausted. But those in the armed forces cannot stop just because they are tired. This encounter was not finished.