The Five-Faced Rescue From the Underworld

Five lamps, burning in five directions, in the same room.

Put out four and nothing happens. They have to go out together, in one instant.

That was the whole design. Mahiravana had not built a defence that was hard to beat. He had built one that was impossible for anybody with one face and two hands.

How they got there

Indrajit was dead by Lakshmana's hand and Ravana was running out of options. So he sent for his brother.

Mahiravana ruled Patala, the underworld, and he was a sorcerer whose command of illusion was beyond anything the war had produced so far.

He did not attack the camp. He understood perfectly well that Rama's army could not be beaten by force while it was awake, so he did not let it stay awake.

He walked in disguised as Vibhishana.