IV

And, from a stone beside, a poisonous eft

Peeps idly into those Gorgonian eyes;

Whilst in the air a ghastly bat, bereft

Of sense, has flitted with a mad surprise

Out of the cave this hideous light had cleft,

And he comes hastening like a moth that hies

After a taper; and the midnight sky

Flares, a light more dread than obscurity.