I'm a Magician

Hint 1 of 13:

Those guards look strong.

Hint 2 of 13:

Try not to fight them.  What spell could you use so that they don't see you
enter the gates?

Hint 3 of 13:

Try blinding them with a Dazzle spell.

Hint 4 of 13:

Now open the door and follow the Djinni.