Hercules had to labor to kill this feline by strangulation, as no weapon could pierce its skin
... and the 
god's oracle told him he would have to serve Eurystheus, the king of Tiryns and ... 
As part of his sentence, Hercules had to perform twelve Labors, feats so difficult ... 
Labor 1: The Nemean Lion  Labor 2: The Lernean Hydra  Labor 3: The Hind of... [DOC] [TLE] The Twelve Labors of Hercules - Crystalinks [PAR] As part of his sentence, Hercules had to perform twelve Labors, feats so difficult 
that ...