Merging two editions of the same book

[Luna]

This book has a new edition, but it's cataloged as a separate book. It should be merged and this should be shown as a edition Os Que Esperam Nas Sombras, in the same page as the original book.
Thank you.

[Emmy]

Done.

Next time please use the appropriate folder for this kind of requests.
See Where should I put my request? (folder overview)