We arrive in a great cirque, in the midst of which are mulberries. In and out, everywhere grow oaks and broom; suddenly we come forth upon the gaping chasm through which rolls the Chassezac. A narrow and dangerous path down a rift enables one to descend to the river.
By scrambling among fallen blocks, after having passed under a little natural arch, a tunnel is reached in which a score of persons might shelter from the rain. Then a path emerging into the light leads along a terrace above the abyss, and by climbing and sliding and clinging to the bushes La Gleyzasse (the Church) is reached, a rift and cavern, once inhabited, as has been proved by the discovery under the soil of flint weapons and fragments of pottery.
This is the best known of the caverns of Païolive. But the mysterious wood grows above a whole subterranean world of vaults and passages. The entrances to these grottoes are known only to the guide; they are hidden among bushes, and often they are pot-holes, wells that open without warning, and down which an incautious visitor might fall. Stones thrown in strike the sides with a sound that becomes ever feebler till they reach the unexplored bottom.
M. de Malbos describes some of these:—
"I visited as well a grotto forming a gallery, on a very rapid slope. I would not speak of it but that, entering it without a candle, I found that my right foot did not touch the ground; so I retraced my steps to light a candle, and thus illumined I saw with horror that I had had half my body suspended over a precipice, sustaining myself only by my left foot on a slide of loose stones.
"On ascending the river of Chassezac, on top of the