Despite the haze over the sea the "blimp's" movements could still be made out from the deck of the destroyer. Mast lookouts and those on bridge and deck followed the "blimp's" movements with keen interest.

"He maneuvers as if he were closing in on the steamship," declared Ensign Andrews.

"If the steamer's skipper uses anti-aircraft guns the dirigible's commander will be justified in dropping bombs," Dave returned. "It's a stupid piece of business for any lightly armed steamer to attempt to resist a 'blimp.' But of course the steamer's skipper does not know that there is a warship so close."

"The rascal's firing on us," reported the "blimp."

"If you'll keep back we'll close in and talk to the stranger," Darrin suggested, by wireless.

"We're hit," almost instantly came the report from the airship.

"Badly?" Dave asked by radio.

"Investigating. Report soon."

"That ship must be up to something extremely desperate to dare to fire on a British 'blimp'!" exclaimed Dave Darrin. "But we're getting close, and soon ought to know what we have to tackle!"