Invisible ink is a book in The Witcher 2: Assassins of Kings and can be found near a drunk scribe in the Temerian Quarter. Item appeared in the Enhanced Edition.

Journal entry

Invisible Ink
Those wishing to conceal the true contents of their missives from third parties often resort to penning their letters with invisible ink. A message set down in this manner becomes visible only when the document is treated with a substance that reveals the writing.
Some use invisible ink as a dye, soaking entire pages in it instead of using it to write. The recipient of a message thus treated can confirm its authenticity by applying a substance that will turn the page a specific color, usually blue.

Associated quest

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