Thread:Spike144/@comment-30336302-20170130065122/@comment-30336302-20170201103310

When you open a pack and discovered a card that can directly causes your MK books to level up (only works for lvl 5 to 6 or lvl 10 to 11, for example a lvl 10 mortar book and after you collect the card it goes to lvl11), but you haven't collect the card and clicked the MK book, you will see that that tower's book has a one lvl higher book appearance just like the pic. 3 above.

Of course, after you collect that card, that tower's book will turn to the new level and so the correct appearance.

I also want to ask, what is your average MK level and what is your highest knowledge book?