"Yeah."

She throws her hand out. "TAXI!"

And here comes the taxi. And a frowning driver. "...hey, shouldn't you kids be at home or something?"

"We're heading to her sister's apartment!"

"All alone? ...whatever, kid, as long as you have money."

She has lots and lots and lots of money.

Then she will have no trouble being transported to this fancy-ish apartment building.

Is there a gate or a code or the like?

There's a gate and a doorman that opens the gate.

She turns into Carol's sister then. Does the doorman have a name tag?

Yes! It's Robert Jones.

"Afternoon, Robert," she says in what she hopes sounds like a grown up version of Carol's accent.

"Oh, hi, Miss Claire. ...who are those two?" He does not open the door.

"Cousins. Looking after them while their mother's in the hospital."

"...huh. Is she alright?"

"Knee surgery. Should be right in a week or so."

"Well, she's in my prayers, ma'am."

Still not opening the door.

"Thank you. Batman's dead in the water."

She knew spying on a stranger for weeks would pay off.

He presses a button to open the door. "Have a good day, ma'am!"

Carol smiles nervously at him and fidgets some more.

Much more security?

Retina scan and another, different password and a personal question about family (these are automated).

The question?

"How many immediate family members (parents and siblings) do you have?"

"Three."

A loud alarm starts blaring in that corridor and sections of the ceiling open up to start shooting a gray sticky substance at them. Carol screams.