Board Thread:Site Questions/@comment-33796926-20171128074001/@comment-24101790-20171128143956

It depends if it's a free book or if you're charging. If it's a paid book, you're allowed to use series with the CC-BY-SA license and if you want to use a story with an CC-BY-NC license (a non-commercial license) you need to have their approval. Failure to do so opens you up to litigation.

Either way, you should message the original authors and remember to properly cite them as this wiki has had issues in the past with 'authors' stealing content.