Exploration Log 1499-D

Test commences on June 3, 20██.

Agent K█████ outfitted with a two-way radio earpiece and a standard Foundation sidearm with additional ammunition. Agent's mission is reconnaissance.

Agent places SCP-1499 on his head and vanishes from sight.

Agent K█████: "Doctor, can you hear me?"

Dr. N███: "Yes, Agent. What do you see?"

Agent K█████: "I'm between two of the structures. They resemble spires. Seem to be made of some hard black rock. Ground's the same."

Dr. N███: "Have you made contact with any instances of SCP-1499-1?"

Agent K█████: "Not yet. It's hard to tell. The lighting here is odd, I'm having trouble seeing much. I'll see what I can do."

Sounds of the agent moving quietly for approximately five minutes.

Agent K█████: "God damn. There's a large group of them up ahead. They're all moving together into a huge building."

Dr. N███: "Can you describe the structure, Agent?"

Agent K█████: "Yeah, it's big. Very big. There aren't many structures around it. It is quite elaborate; I see a large amount of towers and spikes. There looks like there's blood on it."

Dr. N███: "Agent, can you get a closer look?"

Agent K█████: "There's some sort of bridge to it. I'm moving in."

Sounds of the agent moving quietly for approximately three minutes and thirty seconds.

Agent K█████: "I'm at the side of the structure. There looks like there's some sort of door here. Smaller than the big one in the front. I'm going through it now."

Visceral sounds are heard for a few seconds.

Dr. N███: "What was that, Agent?"

Agent K█████: "Not sure. Coming from further inside. I'm taking a look."

Sounds of grating and grinding heard coming from multiple sources.

Dr. N███: "Agent? Agent, what do you see?"

Agent K█████: "Jesus- there's a lot of them in there. They're all in a giant group. Their mouths are all open, even the ones on their bodies. I think that sound is coming from them. Can you hear that?"

Dr. N███: "The sound is coming through, Agent. Try to get a better look."

Agent K█████: "Okay. They're all facing one direction. Let me see if I can look."

Sounds of grating continues for twenty seconds.

Agent K█████: "They're all facing one of them standing on a platform. There are large amounts of bodies around him. They've stopped vocalizing and are all just looking at the one up front."

Loud visceral sounds return.

Agent K█████: "It appears the one in the front is- Hold on, I can't see. It's cutting open its own torso. There are some sort of worm-like creatures spilling out of it."

Dr. N███: "Agent, what is happening? I can't hear-"

Agent K█████: "Wait, above its head. I think I see- There's something in its torso that's creating some sort of light. There's a beam going up from it into the air over his head."

Dr. N███: "What's happening? Agent, keep talking."

Agent K█████: "I think it's opening some sort of portal. And I- It's summoning something. The entity is summoning something. I think I see something coming through the portal- It looks like a massive version of one of the worms that came out of the entity's chest. I think the glowing object in that entity's torso is holding the portal open. I- I can't let that thing through. I've got to stop it."

Dr. N███: "Agent?"

Sounds of the agent running and gunfire. The grating noise returns louder than before.

Sounds of stone objects and bodies falling down. Visceral sounds fill the air.

Agent K█████: "I've almost got-"

More visceral sounds, closer to the agent now.

Agent K█████: "Got it now-"

The remainder of the agent's sentence is unheard as he removes SCP-1499. Agent appears in test chamber covered in blood and holding a human heart.

Agent K█████: "It's alright, I got-"

Agent looks at the heart in his hand and yells, dropping it.

End of log.