November 21, 1989
Ancient Books of Ys
01. Prologue
No details
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November 21, 1989
02. The Book of Hadal
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February 21, 1990
03. The Book of Tovah
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November 21, 1990
04. The Book of Dabby
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January 21, 1991
05. The Book of Messa
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May 21, 1991
06. The Book of Gemma
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July 5, 1991
07. The Book of Fact
No details
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September 5, 1991