RPG 2 – The demons are coming!!!

The ground was shaken by a terrible impact. Then again and again... Cracks appeared in the walls... Peeking through a narrow window, you saw:
Huge craters in the middle of the fort, made by meteorites [where did the meteorites come from underground???]. The walls of the fort were constantly illuminated by flashes of fireballs. Defenders were falling from the walls like peas. Suddenly, dozens of hellish symbols appeared in the middle of the courtyard.
Suddenly, on the path of a group of riders galloping towards the wall, the Devil appeared and, with all his might, sent several lizards and their riders on a short flight.
Demons began to emerge from the symbols...
Unexpectedly, the door to the corridor, where the bars of your cell led, was torn off its hinges, and a Dark Priestess ran past the bars, followed by two Furies, and two hounds flew in after them.
One of the Furies, at the last moment, let the creature pass by and attacked the beast from behind, but the other hound jumped on her and literally tore her apart before your eyes. Purple slowing tendrils enveloped the hound, and the second Fury finished it off. Then, in the doorway of the corridor, a Succubus appeared, and a stream of flames rushed towards the witch. The Fury blocked the fire and burst into flames like a torch.
But the chain of fire continued on its way to the witch.
The regal child of Malassa, with an agility that her guardians would envy, dodged the flames at the last moment, but...
It hit the bars of your cell. The protective crystals burst. The bars glowed red and cracked, and the weakened stream of flames, with stubborn persistence, finally caught up with the witch and threw her against the opposite wall.
The Succubus, not noticing you, approached the witch and began to say something to her.
A new stream of fire was already beginning to form on her right hand....
Knight, Saruman, what are your actions? (you can also role-play the Minotaur.)