History of the Peloponnesian War

Now Astyochus did not so much as think of punishing Alcibiades—especially as he no longer put himself in his power as he used to do—but having gone up to him and Tissaphernes at Magnesia, at once told them the contents of the letter from Samos, acting as an informer to them, and for his own private gain devoting himself, as was said, to the interest of Tissaphernes both on these and on all other matters: