Greek Anthology Book XIV: 20. - Enigma
- If you put one hundred in the middle of a burning fire, you will find the son and slayer of a virgin.
Pyrrhus, son of Deidamia, and slayer of Polyxena.
The word for fire in ancient Greek was $\pi \upsilon \rho \acute \omicron \varsigma$ (that is, pyros).
Inserting $\rho$ into $\pi \upsilon \rho \acute \omicron \varsigma$ gives $\pi \upsilon \rho \rho \acute \omicron \varsigma$, which is a rendition of Pyrrhus.
He it was who murdered Polyxena, according to some legends (or sacrificed, which is tantamount to the same thing).
Deidamia of Scyros was indeed his mother.