History of the Peloponnesian War

And from this time did Perdiccas first esteem Brasidas as his enemy, and afterwards hated the Peloponnesians, not with ordinary hatred for the Athenians' sake, but being utterly fallen out with him about his own particular interest, sought means as soon as he could to compound with these and be disleagued from the other.

Brasidas, at his return out of Macedonia to Torone, found that the Athenians had already taken Mende; and therefore staying there (for he thought it impossible to pass over into Pallene and to recover Mende), he kept good watch upon Torone.