Don Alonzo, finding himself summoned in an unorthodox manner, had suspected that something was amiss. Going to the window he saw the section of the airship in the courtyard. Partly with the idea of giving the alarm and partly with the idea of damaging the ballonettes he fired almost point blank at the huge target.

"Lie down, men," ordered Dacres, then clapping his revolver to the door he blew away the stout lock. Before he could push open the shattered woodwork five shots in rapid succession whistled along the corridor. Had Dacres or any of his companions been standing they would have been in the direct line of fire.

The commandante had emptied his revolver. Before he could reload he was pounced upon, disarmed, and secured.

Meanwhile, the noise of the firing had reached the ears of the prisoners. The British ones, having been warned of what was taking place, maintained silence, but the Valderian political prisoners, thinking that either a mutiny or a counter revolution had broken out, shouted, cheered, and kicked up a terrific din.

Leaving a man to keep guard over the governor Dacres led the rest of his command to the prisoners' quarters. The captives had been left for the night, the authorities taking it for granted that there would be no use for any military warders. Since the keys could not be found, and Don Alonzo stubbornly refused to answer any questions put to him by Callaghan, the doors of the cells had to be broken open.

"Knock off this lock for me," ordered Dacres, pointing to the one on the door of No. 19—that tenanted by his former Admiral.

A telling blow with a sledge-hammer wielded by a former armourer's mate of the Royal Navy, sent the metal-work clattering on the stone floor of the corridor.

"Come aboard, sir!" said Dacres, saluting. Rear-Admiral Maynebrace did a thing he had never done before. He grasped the hand of his former subordinate and wrung it heartily. He tried to speak, but his emotion prevented him from uttering a single word.

"Smith," said Dacres, addressing one of his men. "Escort Admiral Maynebrace to No. 5 section. Place him safely on board and return. Now, lads," he continued, "we'll have the British prisoners out before we release the Valderian ones. We can't take them with us; they must shift for themselves. One moment: open this door."

The cell Dacres had indicated was tenanted by a Valderian general who had been a partisan of the ill-fated President San Bonetta.