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The Tower of London becomes a spooky playground for this after-dark immersive experience directed by Anagram, a digital theatre company. Messages and phone calls will lead you through the buildings and courtyards as the stories of code-breakers, law enforcers and religious extremists from the past unfold. Tours take place at 6.15pm, 6.45pm, 7.15pm, 7.45pm and 8.15pm and last 45 minutes. Preview performances on Feb 1-2 are available at a reduced rate of £16. Book in advance by visiting the Tower of London website.