13/16 At every stamp there was a hiss--a sharp, angry hiss and a puff of vapour rose from among the leaves. "No wonder you did not hit it." "Then that must be steam we saw over yonder, and not savages' fires." "Right, my lad. We're in a volcanic land, and if we search about I daresay we shall find hot springs somewhere." "It can't be very safe," said Mark thoughtfully, as he watched the little puffs of steam rise. But come along, I think we've done enough for one day, so let's find our pigeons and get back." "Where's Jacko ?" said Mark, looking round. |