"Breakfast's ready," he announced, "there's some nice fat bacon and fried eggs and jam and——"
It was too much. With what strength they had left Billy and Harry tumbled to their feet and aimed simultaneous blows at him.
It was a final effort and as the Southern Cross plunged onward toward her mysterious goal she carried with her two of the most sea-sick boys ever recorded on a ship's manifest.
CHAPTER IV.
A MESSAGE FROM THE AIR.
It was a bright, sunshiny morning a week later. The Southern Cross was now in sub-tropic waters, steaming steadily along under blue skies and through smooth azure water flecked here and there with masses of yellow gulf weed.
The boys were in a group forward watching the flying fish that fled like coveys of frightened birds as the bow of the polar ship cut through the water. Under Dr. Gregg's care Billy and Harry had quite recovered from their sea-sickness.
"Off there to the southeast somewhere is the treasure galleon and the
Sargasso Sea," said Harry, indicating the purplish haze that hung on
the horizon. [Footnote: See Vol. 4 of this series, The Boy Aviators'
Treasure Quest; or, The Golden Galleon.]
"Yes, and off there is the South Pole," rejoined Frank, pointing due south, "I wish the old Southern Cross could make better speed, I'm impatient to be there."
"And I'm impatient to solve some of the mystery of this voyage," put in Billy, "here we've been at sea a week and Captain Hazzard hasn't told us yet anything about that—that,—well you know, that ship you spoke about, Frank."