Stegno for Kids

[Robert A. Hayden]

On Tue, 3 Jan 1995, Hadmut Danisch wrote:

> I had something like that as a toy about 20 years ago. A single pen with
> tips on both sides. One to write, the other to develop. Didn't they have it
> in America also?

There was also this thing where you would get these books and a magic 
marker, and they you would do puzzles in the book, and use the pen to 
develope the answer.

The old Infocom hint books also used a similiar setup.

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