elita did you powerstones also vanished dear from your book as its only showing 15 power stones for your book to me and also showing only 2 powerstones for my book to me
Yes, Every week it vanished, I mean it won't be visible to others but you will see the cumulative ** in your inkstone acct with your book ranking as well.
This new power stones will accumulate for 7days then disappear again but your book ranking is intact.
I think this is the way they program it.