The Riddle Of The Sphinx

Arbo grumbled and snarled, as the first rays of light
disrupted a too brief sleep, wrestling his still weak eyes.
The old man stood on the hill, fixing a distant point,
beckoning the yawning prince to get up and come to him.

Down the hill lied a particular city called Thebes,
concealing some odd menace behind its gates hardly welcoming.

A deplorable monster, who was known as the Sphinx,
was blockading the Thebans inside the cursed city.
It had been sent by the will of the wicked Hera,
who wanted the Thebans to pay tribute to the gods.

Descendant of a sinister line of five generations of monsters,
the evil creature devoured alive everyone who failed to answer her riddle.

Arbo was on the way leading to the city's gates
when he saw an old man who seemed in great distress.
The elder was walking in the most laborious way,
leaning on a staff and staggering at his every step.

Arbo came up his way and addressed him kindly.
The old man then unfolded the lines of a strange prophecy:

"Ancient legends have long foretold
That a blessed one would come someday
From a far, distant kingdom
To deliver Thebes from its cruel bane."

Incidentally, Arbo found the insidious Sphinx on his way.
She was standing proud on a rock outside the city's gates.
It was a fiendish creature, like he had never ever seen:
having the face of a woman and a lion's body.

The Sphinx disdained as she considered the new visitor.
With a voice filled with insolence,she posed her deadly riddle:

"Shalt thou tell me what creature
walks on four feet in the morning,
stands on two feet at noon and
on three feet in the evening?"

"O, muse of the dead, listen to the words you want not to hear,
for my voice shall now herald the end of your sanguinary reign.