The language-learning app Duolingo is a helpful tool for preparing for a Japanese vacation or brushing up on your high-school Spanish. But soon there will a new reason to download the app: In addition to the “real” languages it teaches, Duolingo will be offering High Valyrian to enhance your Game of Thrones-watching experience, SFGate reports.

In the acclaimed HBO series, High Valyrian is the dialect spoken by Daenerys Targaryen, one of the last surviving descendants of Old Valyria. As is the case with Dothraki, Valyrian was invented by conglanger (language constructor) David J. Peterson. He thoughtfully composed both languages to mimic organic linguistics, so that viewers could learn to speak the languages at home.

Now Game of Thrones fans will be able teach themselves High Valyrian without studying a digital dictionary. A beta version of Duolingo’s High Valyrian lessons will launch for web browsers on July 13 and eventually make its way to the iOS and Android apps.

The seventh season of Game of Thrones premieres July 16 on HBO. While you may not be able to reach Daenerys-level fluency by then, you’ll have plenty of time to learn the basics, like Valar morghulis, or ”All men must die.”

[h/t SFGate]