It was two hours before they reached the second opening, and then Vane, unstrapping his pack, clambered up the steep face of a crag. When he came back, his face was thoughtful. He sat down and lighted his pipe.
"This search seems likely to take us longer than I expected," he said. "To begin with, there are a number of inlets, all of them pretty much alike, along this part of the coast, but I needn't go into the reasons for supposing that this is the one Hartley visited. Taking it for granted that we're right, we're up against another difficulty. So far as I could make out from the top of that rock, there's a regular series of ravines running back into the hills."
"Hartley told you he came straight down to tidewater, didn't he?"
"That's not much of a guide. The slope of every fissure seems to run naturally from the inland watershed to this basin. Hartley was sick and it was raining all the time, and coming out of any of these ravines he'd only have to make a slight turn to reach the water. What's more, he could only tell me that he was heading roughly west. Allowing that there was no sun visible, that might have meant either northwest or southwest, which gives us the choice of searching the hollows on either side of the main valley. Now, it strikes me as most probable that he came right down the main valley itself; but we have to face the question as to whether we should push straight on, or search every opening that might be called a valley?"
"What's your idea?" Carroll rejoined.
"That we ought to go into the thing systematically, and look at every ravine we come to."
Carroll nodded agreement.
"I guess you're right."
They strapped their packs about them and struggled on again. Stopping half an hour for dinner, they plodded all the afternoon up a long hollow, which rose steadily in front of them. It was narrow, and in places the bottom of it was so choked with fallen trunks that they were forced for the sake of a clearer passage to take to the creek, where they alternately stumbled among big boulders and splashed through shallow pools. The water, which was mostly melted snow, was very cold.
The light was fading down in the deep rift when, winding round a spur through a tangle of clinging underbrush, they saw the timber thin off ahead. In a few minutes Vane stopped with an exclamation, and Carroll, overtaking him, loosened his pack. They stood upon the edge of the timber, but in front of them a mass of soil and stones ran up almost vertically to a great outcrop of rock high above.