Vernon Jones (1912)
194. THE HERDSMAN AND THE LOST BULL
A Herdsman was tending his cattle when he missed a young Bull, one of the finest of the herd. He went at once to look for him, but, meeting with no success in his search, he made a vow that, if he should discover the thief, he would sacrifice a calf to Jupiter. Continuing his search, he entered a thicket, where he presently espied a lion devouring the lost Bull. Terrified with fear, he raised his hands to heaven and cried, "Great Jupiter, I vowed I would sacrifice a calf to thee if I should discover the thief: but now a full-grown Bull I promise thee if only I myself escape unhurt from his clutches."
Aesop's Fables: A New Translation by V.S. Vernon Jones with illustrations by Arthur Rackham (1912). This book is available online at Project Gutenberg.