What does Esther 10:2 mean?

If you want to know more about everything King Xerxes did—his power, his achievements, and how he honored Mordecai and made him second-in-command—you can find it all written down in the official records of the kings of Media and Persia. Esther 10:2 - Modern Text Bible

(This verse points readers to the official historical records for more details about Xerxes' reign and Mordecai's rise to power, showing that these events were significant and well-documented.)