Casualties had been heavy aboard the ships sunk by the raiders. One or two of the enemy submarines had been fired on by armed ships, but to no avail; and as a result of those efforts, the death lists aboard such vessels had been increased, for the Germans, angered, had swept the survivors in small boats with rapid fire guns.
How many submarines were operating in American waters, the Navy department did not know. From the fact that ships were attacked in at least three places, within a short space of time, however, it was believed that there were at least three or four of the raiders.
From all ports along the coast, destroyers, submarine chasers, motor boats armed with single guns, had put to sea in an effort to run down the raiders. But off the New Jersey coast, almost in the midst of these vessels, a sailing ship was sunk by a submarine. Before any of the patroling vessels could reach the scene, however, the U-Boat had submerged and fled.
Depth bombs were dropped by ships of war wherever it was thought a submarine might be lurking beneath the water. But these efforts met with no success. Reports of sinkings in other parts of the water reached the Navy department.
The first sinking was reported on May 10. In the week that followed, eighteen other vessels were sent to the bottom by German submarines off the American coast. At the end of that time, however, the waters were being so well patrolled that it would have been suicide for a submarine to have showed itself.
Reports of sinkings ceased. But, from time to time, word was received that submarines had been sighted farther south, first off the coast of the Carolinas and then off Florida. No attacks were made in these waters, however, and the next that was heard of the submarines they were off the coast of South America.
During the activities of the enemy raiders, one submarine was sunk, and one was captured, both through the efforts of Jack and the crew and officers of the Essex.
After leaving Hampton Roads, the Essex steamed out beyond the Virginia Capes. Immediately Jack sought to get into communication with Admiral Sellings by wireless. And at last he raised the admiral's flagship, the Dakota.
"What do you want?" came the query from the Dakota, after Jack's flash had been picked up.
"British destroyer Essex, Captain Templeton, reporting to Admiral Sellings for orders at the request of Secretary Daniels," was the message Jack sent back.