High Prophet of Truth
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Summary
The Prophet of Truth is one of three High Prophets that lead the Covenant. Speculation states he is the youngest of the three prophets, on account of his appearance and voice, but there is little to back this up. He also appears to be the most powerful of the three High Prophets, making him the overlord of the covenant.
Justification of the beleif that he is the most powerful of the three high prophets comes from scenes such as the opening cinematic sequences in 'Heretic', and scenes during the opening of 'The Arbiter'. His authority is also clearly exhibited in other ways, for example, it is he who airs the transmisson informing the Covenant that the great journey is about to begin(before being interrupted by Master Chief at the start of 'Gravemind').
After the High Prophet of Regret was killed by the Master Chief, he began replacing the Elites with the Brutes as the Prophets' protectors. This ultimately led to a civil war throughout the Covenant.
During a Flood attack, he allowed the High Prophet of Mercy to be consumed by an Infection Form, with the words: "The Great Journey waits for no one, brother. Not even you."
As it looked as though High Charity would fall to the Flood, he fled in a Forerunner Ship. When the Chief questioned dying Mercy, he said that Truth was going to Earth "to finish what we started".
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