Board Thread:WARNING ALL USERS False Info\Spoilers/@comment-4091815-20140304132059/@comment-4091815-20140304154017

42.119.209.171 wrote: Noshiko said she closer to 900 = she's still not 900 (8xx).

And as you know, kitsune grows a tail every 100 years.

So, she now have 8 tails (8 kaikens) only so far.

Nothing is missing. But there were nine slots in the book - each one presumeably held a tail which is slightly better evidence than a bit of "real world" folklore NOT shown on Teen Wolf.