"Why, certainly!" the girl exclaimed in pleased startlement. "I should have guessed it, too! The _Barbarian_ is bright silver now, instead of black! From a distance the Callistans think it's one of their own silvery ships! And so, naturally, they don't bother us!" "Uhuh," Ron chuckled. "So far, so good! Now maybe we can concentrate on delivering our mysterious cargo, as per Arne Reynaud's instructions. It's all up to him, now! We're going to find out whether he was crazy, or, to put it mildly, truly clever!" * * * * * Disguised as it was, the _Barbarian_ reached Titan's far upper atmosphere without trouble. Evidence of fighting could be seen, many miles beneath. Puffs of explosions in the weak sunshine. Silver ships flying, spreading final destruction over the richest farm country in the solar system--richest because of those scattered sun-ray towers and their secondary, plant-stimulating radiations, and the fact that Bart Mallory, the inventor, permitted the patent rights to be used only for the Leiccsenland Colony. A few of those towers were shattered, now; but most of them still shed their sunlike brilliance. The Callistans needed them, if conquest was completed, to maintain the warm climate and the fertility of the farms. So, in general, they had avoided their destruction. And when, as now, the sun itself shone during the day, it was useless for the Earthians to shut off the globes for blackout protection. [Illustration: _The dread Callistan ships were coming over again, death spewing from their silver bellies._] "Our people are still battling!" Anna said happily. "For weeks, with all radio-communication blocked off by the Callistan static-barrage, we didn't even know that, for sure! But it's a good sign!" "Maybe," Ron commented with a shrug. "Anyhow we're here high up in the atmosphere. Arne Reynaud said 'Scatter the cargo.' That should be easy to do from this position. So, here's how!" He pulled a lever which had been an enigma to Anna and to himself through all their return voyage from Mars. It was the lever which opened the discharge-vent of the _Barbarian's_ hold. Peering wonderingly from the side-ports of the control-room, the man and the girl saw what was coming out of that discharge-vent, and settling gradually toward Leiccsenland, and the surrounding hills, far beneath. A brownish cloud--like chaff--that was all. It swirled astern like a streamer, in that high, frigid altitude. It scattered, so that it dissolved from view. Spreading, sinking downward. "Not very impressive, is it?" Anna asked anxiously. It was plain that she was doubting Arne Reynaud's mysterious weapon more and more. Just chaff. What could it ever do against the Acharians, armed to the teeth, hardy, and prepared for all violence? "Not very impressive," Ron agreed with a cynical shrug.