"All right," this from Captain Raleigh. "Call the Invincible."

Again the wireless began to click. Two minutes later the operator reported:

"Invincible answering, sir."

"Send the same message," instructed Captain Raleigh.

It might be well to state here that all these messages were sent in code, for it was probable that a German vessel of some sort might be within the wireless zone and, if able to read the messages as they flashed across the sea, would have communicated with the main German fleet.

One after another now the wireless of the Queen Mary picked up the battle cruisers Defense, Black Prince, Warrior and the super-dreadnaught War-spite, all of which chanced to be within range of the Queen Mary's wireless. The destroyers Tipperary, Turbulent and Nestore also answered the call and were instructed to proceed to the Skagerak at full speed.

And to each vessel, as it answered, the single word "relay" was flashed. This meant that Captain Raleigh wanted the word sent to other vessels of the British fleet not within her own wireless radius. And the answer to this was invariably the same:

"O.K.!"

Still in the wireless room, Captain Raleigh turned to Frank and Jack and said:

"Now, I shall be glad to know how you boys learned this information."