Olem said:
Hmm... the coffin that was left in the violet mansion, maybe? :v
Or actually, you know, I'm stumped. "A place where even the meaning of love is know" Yeah, I dunno. Wonder what Hayate's guess is.
Yes that'd make sense, especially since Yukariko gave Klaus the mansion because she wanted to marry him as a kind of weeding gift.
Still I wouldn't be surprised if everyone mistake the location for the secret palace and they start to race to it only to discover there's nothing there.