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Call Of Duty Modern Warfare III (2023) GuidesGame Guides

What To Do With The Locked Diary In COD Modern Warfare 3 Zombies (MWZ)

The first and only mission in Act IV leads you into the Dark Aether. After defeating the final boss in this mission you obtain a Locked Diary. This guide on What To Do With The Locked Diary In COD Modern Warfare 3 Zombies (MWZ) walks you through what you need to do in order to use and unlock the diary to progress further into the mysteries of the zombies mode.

The new mission, introduced to Act IV, is called Bad Signal. It challenges you to locate an anomaly and “leave the dark aether”. This is a simple mission, you just need to head to the exfiltration location and complete the mission. The zombies inside are all Tier 2 zombies, so make sure you go in prepared.

Call of Duty Modern Warfare 3 Zombies – Locked Diary

If you were paying close attention during the Bad Signal mission, when you break each of the seals, they reveal a small 3D image of a special item. These represent the items you need in order to open the 4 new sigils on the main map. The Locked Diary is one of those items.
How To Open The Dark Aether Rift In COD Modern Warfare 3 Zombies
When you are on the main map, you can bring The Locked Diary to the location shown above, this is the location of the Dark Aether Portal. You need to approach the pedestal with the ice icon and then use the The Locked Diary from your inventory. This will activate that sigil.

Unfortunately, this appears to be only part of the puzzle as we need to track down the other items. Save your Locked Diary as if you use it on the pedestal, you will lose it. Only use it once you have found the other items. We are trying to locate them now.

How To Open The Dark Aether Rift

These are the items you need.

There is a Brain Rot pedestal at The Dark Aether Rift. This guide on Where To Find The Pills Item For Dark Aether Rift In Modern Warfare 3 Zombies explains where to find this unique item so you can unlock the harder version of the Dark Ether Rift in MWZ.
The Dog Collar is a unique item you need for the Napalm pedestal at The Dark Aether Rift. This guide on Where To Find The Dog Collar Item For Dark Aether Rift In Modern Warfare 3 Zombies tells you where to find the Dog Collar and how you can turn it into a legendary item.
You need the Surveillance Camera for the Dead Wire pedestal at The Dark Aether Rift. This guide on Where To Find The Camera Item For Dark Aether Rift In COD Modern Warfare 3 Zombies explains where you can find the camera and what you need to do in order to turn it legendary so you can use it to enter the portal.
The Dark Aether portal appears on the map once you have completed the Act IV mission. this guide on How To Open The Dark Aether Rift In COD Modern Warfare 3 Zombies explains how you interact and use the 4 different pillars with the Cryo, Dead Wire, Napalm, and Brain Rot images on them.

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