What does Jeremiah 41:10 mean?

Ishmael took captive all the rest of the people in Mizpah—the king's daughters and everyone else left there, whom Nebuzaradan had put under Gedaliah's care. He set out to cross over to the Ammonites with them as prisoners. Jeremiah 41:10 - Modern Text Bible

(Ishmael kidnaps the survivors, including royal family members, and heads toward Ammon, likely seeking refuge or alliance.)