Reversed messages

There are four reversed messages in the Halo series, one in Halo 2, and three in Halo 3.

Destroyer's Invocation Message

(for three messages http://www.youtube.com/watch?v=KzNpQHaWm1Q ) In the Halo 2 song Destroyer's Invocation, (the first movement of the Mausoleum Suite on the Halo 2: Original Soundtrack, a mysterious voice chants. If this mumbling is reversed (listen), a voice is heard saying:

...I have walked among men and angels for three thousand years. Time has no end... no beginning... no purpose.

I wander the earth, seeking forgiveness for my horrible crimes against God and man.

I live to see death and destruction, evil... over the light, but the light cannot be extinguished.

I live in a prison of my own devise.' '

I am lost...in time

The voice can be heard during the cut scene before The Arbiter, the level Gravemind when you rescue the Marines, and during The Great Journey when you fight Tartarus.

Recently, Marty O'Donnell posted on the Halo.Bungie.Org forums that he wondered "why the transcript (of the reversed message) is still wrong." This seems to indicate that changes must be made to the transcript before it is accurate.

There are many theories as to whom the voice belongs. The most plausible candidate is 032 Mendicant Bias, however other possibilities include a Prophet or the Gravemind. When played, it seems to sound like the Gravemind, but sped up slightly, the voice seems to belong to the Master Chief. If sped up even more, the voice resembles that of a Monitor.

Black Tower Message

In the Halo 3 soundtrack During the first few minutes of the track Black Tower, there is yet another message that can be heard if you reverse the song. Here is a transcript:

I smote Death's dream kingdom,

Appear as sunlight on a broken column.

There in Death's other kingdom walking alone,

Trembling lips form prayers to broken stone.

This message appears to be a reference to T.S. Elliot's Poem The Hollow Men. The first part of the transcript refers to lines 20-23.

In death’s dream kingdom

These do not appear:

There, the eyes are

Sunlight on a broken column

The second part refers to lines 47-49.

Waking alone

At the hour when we are

Trembling with tenderness

Lips that would kiss

Form prayers to broken stone.

Gravemind/Dread Intrusion Message

Also in the Halo 3 soundtrack, a reversed message can be heard in the tracks Gravemind, and Dread Intrusion. The entire message is currently unknown, however, several lines are intelligible. Oddly, the voice during these messages sounds different from Gravemind. It echoes considerably, rendering several lines unknown, it is much deeper in pitch, and multiple other voices can be heard. The first two lines both have 7 syllables each, a possible 7 reference.

Side by side, we march as one,

Humans and Elites will die,

The Earth shall fall if we strike together,

So forth shall all of life.

Exactly who is speaking in this message is unknown. Just like the Destroyer's Invocation Message, there are many possibilities about who it could be. The likely candidates are the Gravemind and the Prophet of Truth since only Elites and Humans are mentioned. It is slightly more unlikely the Prophet of Truth because he refers to the elites as elites, not sangheili.