[Johnny]

Raptorfalcon over at jcafe provided us a nice summary of the chapter...

Spoiler:

Gyokuro tells Moka that Tsukune is falling into a ghoul and that she is the cause. Moka doesn't believe her so Gyokuro starts explaining.

Long ago when Akasha and her friends were fighting Alucard, they couldn't really beat him. In the end, Akasha got into his body, sealed him along with her and they both fell asleep.

About 170 years later, Akasha was rescued by the Shuzen family but due to the long time inside Alucard, her Youki and even blood has combined with Alucard's (basically the same).

Since Moka was Akasha's daughter she could handle it, but what she ended up putting inside Tsukune was the blood of the 2 Vampire ancestor's combined (obviously dangerous). She also explains that when Alucard's blood gets inside another body, it starts propagating and corroding it until it transforms into one of those monsters. Since those monsters are the result of getting Alucard's blood and that's pretty much the same thing Moka injected in Tsukune, he will "definitely" turn into one of them.

Moka begs Gyokuro to save Tsukune and she says she will...but only after he falls into a Ghoul and becomes one of her pets. Gyokuro orders the monster to kill her but Tsukune intervenes. Moka sees his hand and apologizes but Tsukune tells her that no matter what happens to him Moka should not blame herself since thanks to that power he was able to protect her.

He releases the Holy Lock's 2nd Seal and beats Gyokuro's pets. She goes in herself, but Tsukune manages to give her a wound. Tsukune tells Gyokuro, "Let's finish this fast, Gyouro-san...before this body breaks apart..."