What chapter in the manga shugo chara does ikuto try and open amu's humpty lock with his key?

Please tell me what chapter this is!!! I've seen the anime episode...and I really would like to read the manga chapter!!

Please answer!

Book 2 Chapter 10

hmm.....idk check onemanga.com or something, they're really slow about getting shugo chara vol.s out.

idk sorry!

go amuto!!