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

3 stages · Hard · Premium

CIPHER CASCADE

📜 Briefing
A Resistance relay intercepted three nested transmissions. Each layer was locked with the plaintext of the one before it. Break them in order — there is no way around.
  1. 1 Layer 1: The Lost Ship
  2. 2 Layer 2: The Beaufort Barrier 🔒 opens with stage 1's answer
  3. 3 Layer 3: The Keyed Alphabet 🔒 opens with stage 2's answer

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