Reversed messages

There are four reversed messages in the Halo series, one in Halo 2, three in Halo 3 and 8 in Halo: Reach.

Destroyer's Invocation Message

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 demise.'

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.

In 2007, 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 voices that sound like another reversed message in the "infected" part of the Mausoleum Suite, but so far they seem to be indecipherable (too distorted).

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:

Eyes from 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.

It is also worth noting that a line (or lines) from the last stanza in T.S. Elliot's The Hollow Men was used in the end of the Halo 3 E3 2006 trailer. The Stanza is as follows:

This is the way the world ends

This is the way the world ends

This is the way the world ends

Not with a bang but a whimper.

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. This could be a reference to multiple Graveminds from the past that speak as one because of inherited knowledge. 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 will fall if we strike together,

So forth shall all of life.

The exact person who is speaking 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.

A voice can also be heard on the level, The Covenant. It can be found on the second tower's control room, where there are Brute Stalkers.

Data Pads

Similar to the Halo 3 Terminals, Halo: Reach has reversed Forerunner audio in the background of the Data Pads. This is a video of the roughly decoded audio.

Covering data

Corruption contained

Breach identified

Reverting

Welcome Child

Protocol to maintain

Lineage confirmed

Rogue confirmed