It was "No."
"Wish to communicate with you at closer range," the flags of the submarine next signaled.
"We'll heave to," answered the war ship. "Come up under our lee."
Cassidy dropped the flags through the conning tower hatch, then descended to reach the push buttons and send word to the engine room.
Gracefully the submarine rounded the stern of the Seminole in a wide arc and came to a halt within thirty feet of the big vessel on the starboard side.
"What boat is that?" came from the bridge of the cruiser.
"The submarine Grampus, Captain Nemo, Jr., out of New Orleans and acting under orders from the government."
"What orders?"
"To watch a suspected filibuster named James Sixty."
"We've been looking for him and his brig, the Dolphin. The Dolphin is said to have been wrecked and is reported as a derelict, dangerous to commerce. We have orders to examine her, if possible, and she can be found, and then to destroy her. Where is Sixty?"