I should probably mention Marian (R.I.P.) managed to take out Jeeves’ radio, which is why he can’t just call up the Major and explain things.

Maggie: I forgive you for lying before, because you were trying to stay alive to help me. But if you lied about helping my sister, I can’t forgive that! If Mr. Jeeves gets in touch with the big boss, he’ll have her killed. Somebody has to stop him!

Anderson: Is this another one of your tricks?

Alucard: Nope. This is a genuine twelve-year-old girl. And her sister’s seven. Sure could help a guy’s redemption arc to save that kid’s life, don’t you think?