A lost letter looking superficially like an o, but actually an endless stairwell of ink viewed from the top
Don't walk down unprepared
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Conversation
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█: another lost letter
It originally contained all possible letters but was banned after lazy writers used it to write whole novels
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Also lost: the unprintable and undrawable Not-A-Letter, now only seen spontaneously arising in nature (if anybody could recognize it)
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