Previously in Herodotus
121. (b) And the king happening to open the chamber, he marveled when he saw the vessels falling short of the full amount, and he did not know on whom he should lay the blame, since the seals were unbroken and the chamber had been close shut; but when upon his opening the chamber a second and a third time the money was each time seen to be diminished, for the thieves did not slacken in their assaults upon it, he did as follows:--having ordered traps to be made he set these round about the vessels in which the money was; and when the thieves had come as at former times and one of them had entered, then so soon as he came near to one of the vessels he was straightway caught in the trap: and when he perceived in what evil case he was, straightway calling his brother he showed him what the matter was, and bade him enter as quickly as possible and cut off his head, for fear lest being seen and known he might bring about the destruction of his brother also. And to the other it seemed that he spoke well, and he was persuaded and did so; and fitting the stone into its place he departed home bearing with him the head of his brother.
- Herodotus, Book II
More Information: Egypt, Herodotus's Book.