Halloween at the Portal. The Hollow, a haunted cipher maze, is free to play until 2 November. Enter The Hollow

๐Ÿงญ This chain is also a 3D maze

The Hollow is this same chain as a place you walk through. Each stage is a terminal beside a locked gate, and solving it opens the gate. The maze also hides data fragments with a bonus message you can only get there.

Your progress and score are the same either way, so you can start in one and finish in the other. If you want the maze to be a surprise, start there.

โ–ถ Play it in the maze Solve it here as a page โ†“

๐Ÿ“œ Briefing
Something in the Hollow is trying to talk to you. It taps on the walls, it writes in the dust, and it never says anything plainly. Each message gives you the word that unlocks the next.

Four gates. Keep an eye on "Keys you hold" at the top of each terminal, and keep moving: you are not alone in here.
  1. 1 Gate One - The Tapping
  2. 2 Gate Two - Writing in the Dust ๐Ÿ”’ opens with stage 1's answer
  3. 3 Gate Three - The Guest Book ๐Ÿ”’ opens with stage 2's answer
  4. 4 Gate Four - What the House Says ๐Ÿ”’ opens with stage 3's answer

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Scored puzzles need a free account: your time and hints are tracked by the server, points go on the leaderboard, and each answer unlocks the next stage.

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New here? The five tutorials need no account.