We saw him peep over them and give a gesture of amazement. Then he stood staring as if forgetting us, so utterly entranced was he by what he saw. Finally he waved us to come on, holding up his hand as a signal for caution. His whole bearing made me feel that something wonderful but dangerous lay before us.
Creeping to his side, we looked over the rocks. The place into which we gazed was a pit, and may, in the early days, have been one of the smaller volcanic blow-holes of the plateau. It was bowl-shaped and at the bottom, some hundreds of yards from where we lay, were pools of green-scummed, stagnant water, fringed with bullrushes. It was a weird place in itself, but its occupants made it seem like a scene from the Seven Circles of Dante. The place was a rookery of pterodactyls. There were hundreds of them congregated within view. All the bottom area round the water-edge was alive with their young ones, and with hideous mothers brooding upon their leathery, yellowish eggs. From this crawling flapping mass of obscene reptilian life came the shocking clamour which filled the air and the mephitic, horrible, musty odour which turned us sick. But above, perched each upon its own stone, tall, grey, and withered, more like dead and dried specimens than actual living creatures, sat the horrible males, absolutely motionless save for the rolling of their red eyes or an occasional snap of their rat-trap beaks as a dragon-fly went past them. Their huge,
