What does 2 Chronicles 22:11 mean?

But Jehosheba, who was King Jehoram's daughter and Ahaziah's sister, secretly took Ahaziah's son Joash away from the other royal children who were about to be killed. She hid him and his nurse in a bedroom, so Athaliah couldn't find him and kill him too. 2 Chronicles 22:11 - Modern Text Bible

(Jehosheba risks everything to save her nephew Joash from being murdered by Athaliah, who is wiping out the royal family. She hides him away, showing courage and loyalty to her family and to God's promise.)