Hercules' second labor was to slay this snakelike water creature
He cut
... [DOC] [TLE] 12th Labor of Hercules: Cerberus  Mythical Realm [PAR] Mar 2, 2016 ... For the final and most difficult labor, King Eurytheus asked Hercules to bring him 
... in coming to him first before acting on the abduction especially since 
Hercules' ... Cerberus' snake-like extremities lashed out at Hercules while the 
three heads ... After succeeding, Hercules returned the creature to Hades.