Sirius sat on his cot, a small sharp rock in one hand, his wand in the other. He leaned over and blew away a few splinters of dogwood, to reveal a carved triangle.

"So, did you hear the news? Goyle's wife is cheating on him."

Bellatrix glanced over her shoulder, black arched eyebrows lifted lazily and red lips parted, unimpressed.

"In here?"

"Yeah." Sirius pushed himself up and sauntered over, leaning elbows on the bars beside the witch, and stared out. He sniffed.

"Seems he caught her snogging a dementor yesterday."

A set of cackles echoed down the hall.