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Books

The Cube – Keep the secret (published 1995)

The Cube – Keep the secret (published 1995)

HarperCollins

Spread the word . . . but keep the secret!
The Cube has sold more than 500,000 copies and has been published in Germany, Italy, Spain, France, Holland, Japan, China and Serbia.

Secrets of the Cube (published 1998)

Secrets of the Cube (published 1998)

Hyperion Disney
The Ancient Visualization Game That Reveals Your True Self.