But Gies clearly was very special, even when someone still unknown betrayed those she called the hiders and they were taken away at gunpoint to death camps. Gies was not intimidated. She sneaked back into the secret hideaway to try to preserve any belongings of the Franks that hadn't been destroyed or taken. And there she found what would eventually become a treasure of the entire world. —"Woman Who Helped Hide Anne Frank
Dies At 100,"
Teri Schultz

Which detail is most important to include in a summary?

Miep was very special.
Miep sneaked back into the secret hideaway.
Miep found what would become a treasure
Miep was not intimidated.