Ghost Advanced Book Chests and PoD

Im wondering if PoD is harder to get from ghost advanced book chests than any other advance ghost skills because all i've gotten from GABC's are....

First Time: Shadow Storm
2nd: Shadow Storm
3rd: Cunning
4th: Swindle
5th: Swindle
6th: Shadow Storm
7th: Dream Thief
8th: Cunning
9th: Shadow Storm
10th: Punishment
11th: Cunning
12th:
13th:
14th:
15th:

This is really making me mad LOL. Seeing im probably the only level 25+ without PoD in my server .

[Koenaj]

There aren't any numbers known, but from my experiences, I'd say PoD has about 5% less chance to be obtained through a Ghost ABC.
Buuut, you opened 11 ABC's, which is 880 Essence, wouldn't you be able to simply buy the book if you want it that badly ?

Also, I wouldn't stress too much about PoD. Lately, I don't bother giving most of my monsters PoD, simply because the AI doesn't use it at the correct times.

Well finally got POD on like my 14th one.