You guess Doomface to be the mystery person.

Doomface is the CORRECT answer. You are the new CHAMPION of Garunia's Guessing
Game!

Garunia tells you 'Garunia's Guessing Game has ended! As the champion you are
entitled to Garunia's Tome of Knowledge! On top of that All your skills and
spells will receive a small bonus until the game is played again. You also
have access to 'Telepath' rank as long as you are the champion!'
Second win! \o/