History of the Peloponnesian War

Reflecting, then, on these things, and recalling to mind all that they knew by report concerning them, the Athenian people was wrathful at that time, and suspicious of those who had incurred accusation on the subject of the mysteries, and thought that every thing had been done on the strength of a conspiracy for establishing an oligarchy, or a tyranny.

So when, in consequence of their anger on this account, many persons of consideration were already in prison, and the matter appeared not to be stopping, but they were daily proceeding to greater severity and to more numerous arrests; under these circumstances one of the men in confinement, who was thought to be the most guilty of them, was persuaded by one of his fellow prisoners to give information, whether true or not; for suppositions are entertained both ways, and the certain fact respecting those who had done the deed no one was either able to state then, or has since been able.