"That's one thing I got from that brain record."
He worked deftly and rapidly, and soon was rewarded by a flaring crimson color in his detector when it was located in one certain position in front of one of the meters. Noting the bearing on the great circles, he then moved the Skylark along that exact line, over the reflectors, and out beyond the island, where he allowed the vessel to settle directly downwards.
"Now folks, if I've done this just right, we'll get a red flash directly."
As he spoke the detector again burst into crimson light, and he set the bar into the line and applied a little power, keeping the light at its reddest while the other three looked on in fascinated interest.
"This beam is on something that's moving, Mart—can't take my eyes off it for a second or I'll lose it entirely. See where we're going, will you?"
"We are about to strike the water," replied Crane quietly.
"The water!" exclaimed Margaret.
"Fair enough—why not?"
"Oh, that's right—I forgot that the Skylark is as good a submarine as she is an airship."