TM30 Shadow Ball

==Information==
Location: Beryl Library
Available: After Badge 13
==Guide==
You need to do the raid on Devon Corp and get rid of the Kecleons in the Treecko Special Encounter before you can get this TM.
Go to the room on the left on the base floor. Touch the books in the order of Green, Red, Purple, Yellow, Blue, White to open the secret room. The books do not provide feedbacks or reactions when touched, so don't expect any.