History of the Peloponnesian War
Thucydides
Thucydides, Vol. 1-4. Smith, Charles Foster, translator. London and Cambridge, MA: Heinemann and Harvard University Press, 1919-1923.
But the Orchomenians, fearing the weakness of the wall and the number of the enemy, and being apprehensive lest they might perish before relief came, capitulated on condition that they should be received as allies, should give hostages for themselves to the Mantineans, and should deliver up those whom the Lacedaemonians had deposited with them.
After this, being now in possession of Orchomenus, the allies deliberated which of the remaining places they should next proceed against. The Eleans were urging them to go against Lepreum, the Mantineans against Tegea; and the Argives and Athenians sided with the Mantineans.
The Eleans, then, becoming angry because they did not vote to go against Lepreum, went off home; but the rest of the allies began to make preparations at Mantinea to go against Tegea; and there were even some of the inhabitants of the town who were in favour of yielding the place to them.
But the Lacedaemonians, on their return from Argos after making the four months' truce, blamed Agis severely for not subduing Argos, when, in their judgment, the happy opportunity was such as had never been offered before; for it was not an easy matter to get together allies so many and so good.
But when the tidings came about the capture of Orchomenus also, they were far more angry, and in their wrath, contrary to their habit, at once resolved to raze his house and to fine him in the sum of ten thousand drachmas.[*](About £6,730, $32,000.)