Another and very popular story of this cave, current among the common people, was, that in its remote recesses lay concealed a great treasure of gold, left there by the Romans. Whoever would reach this precious hoard must pass through several caves or grottoes; each having its particular terror, and all under the guardianship of a ferocious dog, who has the key of all the gates, and watches day and night. At the approach of any one, he shows his teeth, and makes a hideous growling; but no adventurer after wealth has had courage to brave a contest with this terrific cerberus. The most intrepid candidate on record was a poor man who had lost his all, and had those grand incentives to desperate enterprise, a wife and a large family of children. Hearing the story of this cave, he determined to venture alone in search of the treasure. He accordingly entered, and wandered many hours, bewildered, about the cave. Often would he have returned, but the thoughts of his wife and children urged him on. At length he arrived near to the place where he supposed the treasure lay hidden; but here, to his dismay, he beheld the floor of the cavern strewn with human bones, doubtless the remains of adventurers like himself, who had been torn to pieces. Losing all courage, he now turned and sought his way out of the cave. Horrors thickened upon him as he fled. He beheld direful phantoms glaring and gibbering around him, and heard the sound of pursuit in the echoes of his footsteps. He reached his home overcome with affright; several hours elapsed before he could recover speech to tell his story, and he died on the following day. The judicious Don Pedro de Roxas holds the account of the buried treasure for fabulous, but the adventure of this unlucky man for very possible—being led on by avarice, or rather the hope of retrieving a desperate fortune. He, moreover, pronounces his dying shortly after coming forth as very probable; because the darkness of the cave, its coldness, the fright at finding the bones, the dread of meeting the imaginary dog, all joining to operate upon a man who was past the prime of his days, and enfeebled by poverty and scanty food, might easily cause his death. Many have considered this cave as intended originally for a sally or retreat from the city in case it should be taken; an opinion rendered probable, it is thought, by its grandeur and great extent.