sep 4, 2026 - The Portal explosion

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The unknown person who had left a mysterious warning for Inostropia on July 31, 2026, resurfaced with another message. This time, the message was left in the capital near InfinityZoom187's house, where it was subsequently discovered by InfinityZoom187 himself. It contained instructions on how to supposedly open a portal to the Mountainarians' dimension, being Backrooms Level 52. According to the instructions, the group had to travel to a specific Ancient City near the Forum Inostropium and attempt to activate the portal structure located there. MrKirby10, KB Reverse, Birbygamer99, and InfinityZoom187 participated in the resulting expedition. However, things quickly went wrong. Birbygamer99 discovered a lever attached to the portal and, believing that it would activate the structure, pulled it. Instead of opening the portal, however, the mechanism caused it to explode. After several further attempts to make the portal work, the group eventually abandoned the expedition and left the Ancient City. With no apparent way to enter the Mountainarians' dimension, Birbygamer99 attempted to contact the unknown person. He left a message on signs at the same location where the unknown person left his mysterious book, explaining what had happened and asking whether there was another way to reach the Mountainarians' dimension. However, there was one thing that none of them knew at the time. When the portal exploded, something else had entered Inostropia.

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