Aesop's Fables (1884)
50. The Birds, the Beasts, and the Bat.
The Birds waged war with the Beasts, and each party were by turns the conquerors. A Bat, fearing the uncertain issues of the fight, always betook himself to that side which was the strongest. When peace was proclaimed, his deceitful conduct was apparent to both the combatants; he was driven forth from the light of day, and henceforth concealed himself in dark hiding-places, flying always alone and at night.
Those who practice deceit must expect to be shunned.
Aesop's Fables: A New Revised Version From Original Sources (translator not identified), 1884 . Illustrations by Ernest Henry Griset (1844-1907), John Tenniel (1820-1914) and Harrison Weir (1824-1906). Available online at Project Gutenberg.