detection by the therns whose land we were approaching.
Far in advance of all a thin line of one-man air scouts protected us from surprise, and on either side they flanked us, while a smaller number brought up the rear some twenty miles behind the transports. In this formation we had progressed toward the entrance to Omean for several hours when one of our scouts returned from the front to report that the cone-like summit of the entrance was in sight. At almost the same instant another scout from the left flank came racing toward the flagship.
His very speed bespoke the importance of his information. Kantos Kan and I awaited him upon the little forward deck which corresponds with the bridge of earthly battleships. Scarcely had his tiny flier come to rest upon the broad landing deck of the flagship ere he was bounding up the stairway to the deck where we stood.
"A great fleet of battleships south-south-east, my Prince," he cried. "There must be several thousands and they are bearing down directly upon us."
"The thern spies were not in the palace of John Carter for nothing," said Kantos Kan to me. "Your orders, Prince."
"Dispatch ten battleships to guard the entrance to Omean, with orders to let no hostile vessel enter or leave the shaft. That will bottle up the great fleet of the First Born.
