Instantly on every summit near and far was seen the flutter of an answering flag.

Quickly followed the signal that commanded the call to arms.
One by one I gave the signallers orders in quick succession, for the plan of search unfolded itself to me as I went on.

The arms of the semaphore whirled in a way that made the young priest stare.

One by one, as they took their orders, the signallers seemed to catch fire.

Instinctively they understood the plan, and worked like demigods.