Told you, guys. It's NEVER a good idea to "trick-or-treat" Keine under a full moon.
Or probably Marisa, too, for that matter.

It's "trick-AND-treat" from Keine...

I liked Patchy's expression on the last panel~

Keine: "Here you go.<3"
The children: "Thank You Miss Kamishirasawa!<3"
Keine: "(Oh no)"
Ex-Keine: "What are you kids doing here late at night?Go back home and sleep!"
The Children: "WAI!!!Miss kodomo wo tabe ru kaibutsu(Children-eating-monster is here!!!"
Ex-Keine: "Don't call me that!!!"

T34/38 said:
I liked Patchy's expression on the last panel~

Well, it IS Marisa who they trick-and-treat'ening

I have a feeling this is going to be kind of hard for Keine to live down.

Child 1:"Hey what about that house?"
Child 2:"Oh... yeah we don't go to that house anymore."
*Inside*
Keine(crying): "Why are all the children avoiding me!?"
Mokuo: "I... uh have no idea?"

N2O said:
It's "trick-AND-treat" from Keine...

Ah... I see what you did there...

Keine's halloweens are always like this?
Go to her house and you get caved?

Cirno_no_Hikari said:
Keine's halloweens are always like this?
Go to her house and you get caved?

If you're unlucky enough to do so under the full moon. :P

P.S.: Halloween 2009 ACTUALLY occurs near a full moon! XD

Only Mokou is not afraid of Kiene when she transforms... I wonder if that's why Kiene likes her so much XD

Patchouli in that last frame...

"HAU! OMOCHIKAERI!" / "I'M TAKING HER HOME WITH ME!"

Wait, did Patchy even know that Marisa lives there?

Kids gonna get caved