Cass nodded, the thought one he'd had himself. He stifled a yawn and stretched out on the sofa. 'I think you're right. And we need to match the semen found with someone. I bet whoever had sex with her killed her too.'
'Oh and Percy is going to ask Miles for a sample of his DNA...I so want to be a fly on the wall when he does that,' he said with a laugh. 'I bet Miles will think he'll need to donate a sperm sample.' He liked Miles, he really did, but everyone knew he wasn't the sharpest tool in the shed.
'So should I contact Professor Snape?' he asked. 'Or do you prefer to do it yourself when you get back on duty tomorrow?'