The Citadel of Chaos

You cast the Spell and conjure up a ball of fire in your hands.
They stop in their tracks and watch you carefully.
You toss the ball towards them and they shriek in fright,
rolling away in terror from your obvious powers.
While you still have control over the Spell,
you create three smaller fireballs and pitch one at each of them.
They howl and scatter, rolling up the corridor away from you.

You may now proceed up the left-hand passageway,

or up the right-hand passageway.