"Gabriel, study this, now, as you never yet have studied anything! For on your intimate knowledge of these plans--which, by the way, have been obtained only at the cost of eight lives of our comrades, and through adventures which alone would make a wonderful book--depends everything.

With all communications cut, and troops kept away, and our own people storming the works, you will yet fail, Gabriel, unless you know every building, every courtyard, wall and passage, every door and window, almost, I might say.

For the place is more than a manufacturing plant.

It's a fortress, a city in itself, a wonderful, gigantic center to the whole web of world-domination! "So now, to the plans!" For hours, while Gabriel took notes and listened keenly, asked questions and made minute memoranda, Brevard explained the situation at the great Air Trust works.

The others looked on, listened, and from time to time made suggestions; but for the most part they kept silent, unwilling to disturb this most important work.
Carefully and with painstaking accuracy he showed Gabriel how the plant now embraced more than two square miles of territory around the Falls, all guarded by tremendous barricades mounting machine-guns and search-lights.