The Palace With No Entrance

Odd legend found in Wikipedia when researching some comment about King Solomon:

"... while traveling magically, Solomon noticed a magnificent palace to which there appeared to be no entrance. He ordered the demons to climb to the roof and see if they could discover any living being within the building but the demons only found an eagle, which said that it was 700 years old, but that it had never seen an entrance. An elder brother of the eagle, 900 years old, was then found, but it also did not know the entrance. The eldest brother of these two birds, which was 1,300 years old, then declared it had been informed by its father that the door was on the west side, but that it had become hidden by sand drifted by the wind. Having discovered the entrance, Solomon found an idol inside that had in its mouth a silver tablet saying ... that the statue was of Shaddad, the son of 'Ad, and that it had reigned over a million cities, rode on a million horses, had under it a million vassals and slew a million warriors, yet it could not resist the angel of death."

Now, if that doesn't inspire some modules, I will be sorely disappointed.