And behind them, almost lost in the sunset glare, the little dots of the zeppelins grew larger and firmer. They had already overtaken the other balloon and could now be easily seen with the naked eye: four of them in line abreast. And across the wide silence of the bay came the sound of their engines, tiny but clear, an insistent mosquito whine.
When they were still a few minutes from making the shore at the foot of the hills, Lee noticed something new in the sky behind the zeppelins. A bank of clouds had been building, and a massive thunderhead reared thousands of feet up into the still-bright upper sky. How had he failed to notice? If a storm was coming, the sooner they landed the better.
And then a dark green curtain of rain drifted down and hung from the clouds, and the storm seemed to be chasing the zeppelins as they were chasing Lee’s balloon, for the rain swept along toward them from the sea, and as the sun finally vanished, a mighty flash came from the clouds, and several seconds later a crash of thunder so loud it shook the very fabric of Lee’s balloon, and echoed back for a long time from the mountains.
Then came another flash of lightning, and this time the jagged fork struck down direct from the thunderhead at one of the zeppelins. In a moment the gas was alight. A bright flower of flame blossomed against the bruise-dark clouds, and the craft drifted down slowly, ablaze like a beacon, and floated, still blazing, on the water.
Lee let out the breath he’d been holding. Grumman was standing beside him, one hand on the suspension ring, with lines of exhaustion deep in his face.
“Did you bring that storm?” said Lee.
Grumman nodded.
The sky was now colored like a tiger; bands of gold alternated with patches and stripes of deepest brown-black, and the pattern changed by the minute, for the gold was fading rapidly as the brown-black engulfed it. The sea behind was a patchwork of black water and phosphorescent foam, and the last of the burning zeppelin’s flames were dwindling into nothing as it sank.
The remaining three, however, were flying on, buffeted hard but keeping to their course. More lightning flashed around them, and as the storm came closer, Lee began to fear for the gas in his own balloon. One strike could have it tumbling to earth in flames, and he didn’t suppose the shaman could control the storm so finely as to avoid that.
“Right, Dr. Grumman,” he said. “I’m going to ignore those zeppelins for now and concentrate on getting us safe into the mountains and on the ground. What I want you to do is sit tight and hold on, and be prepared to jump when I tell you. I’ll give you warning, and I’ll try to make it as gentle as I can, but landing in these conditions is a matter of luck as much as skill.”
“I trust you, Mr. Scoresby,” said the shaman.
He sat back in a corner of the basket while his dæmon perched on the suspension ring, her claws dug deep in the leather binding.
The wind was blowing them hard now, and the great gasbag swelled and billowed in the gusts. The ropes creaked and strained, but Lee had no fear of their giving way. He let go some more ballast and watched the altimeter closely. In a storm, when the air pressure sank, you had to offset that drop against the altimetric reading, and very often it was a crude rule-of-thumb calculation. Lee ran through the figures, double-checked them, and then released the last of his ballast. The only control he had now was the gas valve. He couldn’t go higher; he could only descend.
He peered intently through the stormy air and made out the great bulk of the hills, dark against the dark sky. From below there came a roaring, rushing sound, like the crash of surf on a stony beach, but he knew it was the wind tearing through the leaves on the trees. So far, already! They were moving faster than he’d thought.
