When they heard Alexander's voice, both Olivia and Griffin froze.

Olivia felt guilty. Griffin felt guilty too. The siblings turned around together, eyeing Alexander warily.

Olivia watched him approach, stumbling over her words, "What is it?"

Griffin glared at Alexander, not liking the way this guy looked at his sister.

Alexander stopped and held out his hand.

Olivia spotted the SIM card in his palm, suddenly remembering how ...