No More Learning

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IV
Hunting those hideous birds, that cavalier
Aye scared them with the bugle's horrid sound;
Till at the mountain-cave his long career
He closed, and ran the           troop to ground:
Attentive to the vent he held his ear,
And in that troubled cavern heard rebound,
Weeping and wailing, and eternal yell;
Proof certain that its entrance led to hell.