the_debt_of_time

The incantation of the Unforgivable came from behind a closed door and everyone
turned to stare in horror. Even the sound of the word sent a painful chill down Remus's
back, and he was not the intended victim. The idea that it was Harry being tortured made
his fists clench tightly, and a low growl vibrated inside of his chest.
"Bellatrix," Sirius breathed out the name and darted forward.
"Pads, wait!"
Remus followed right behind as Sirius kicked open the door. They stepped through
into a large, dimly lit, rectangular room. In the centre was a pit surrounded by benches that
descended into the area like a great theatre. A large stone dais sat in the middle of the room,
where a massive archway stood, unsupported by any surrounding wall.
They glared at the sight of Death Eaters closing in on two teenagers. Neville was
bleeding profusely from a clearly broken nose, and both he and Harry were kneeling on
the ground while Bellatrix Lestrange aimed her wand at them.
The rest of the Order joined them, gaining the attention of the Death Eaters.
"Stupefy!" Dora shouted as Lucius Malfoy raised his wand at her.
Remus growled at the sight of someone attacking his mate, and he moved to follow
her, but another Death Eater jumped in his way. He saw Sirius briefly hesitate, looking like
he wanted to help, but Remus shook his head. "Go. I've got this."
Sirius gave a quick salute with his wand and spun around, leaving Remus behind
him.
Near the bottom of the ground where the stone dais stood, a masked Death Eater
held Harry tightly in his grip, pressing on his windpipe. Sirius passed by Kingsley—who
was fighting two Death Eaters at once, looking pleased with the fear they each displayed
at his prowess. Tonks was halfway up the tiered seats, firing spells down at Bellatrix.
A Death Eater appeared before Sirius, shouting, "Avada Kedavra!"
The green light passed just over his shoulder; Sirius actually felt the heat of the spell
as it missed him.
"It really pisses me off when you pricks try to kill me," he muttered dangerously,
sending a Stunning Spell at his attacker, who dodged it and advanced forward.
"Aargh!"
The scream distracted Sirius and his opponent, and both looked to see Neville
stabbing a Death Eater in the eye with a wand.