number5 on Thaumcraft 4.2.2.0 released, many bugfix, such foci upgrade, ? very dungeon ? - http://www.reddit.com/r...
Dec 21, 2014
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"LOL on this: "Crafting a thaumonomicon with a focus attached will fail. Apparently people want the ability to mass-replace bookshelves with an equal trade focus or something.""
- number5