‘A cop friend of Dorothy’s,’ Indy said.

‘Dorothy is friends with a cop?’

‘He’s been great,’ Hannah said. ‘Really helped us out.’

‘That’s good,’ Craig said. ‘So this lecturer in the news.’

‘He was sleeping with Mel,’ Hannah said.

‘And you didn’t know about it?’

The kettle clicked off and Hannah got mugs from the rack, threw teabags in. ‘It turns out Mel was good at keeping secrets.’

Craig took a cup of tea from Hannah. ‘And this guy killed her, then himself?’

‘We think so,’ Hannah said. ‘The police are still working on it.’

‘Ms Sherlock Holmes here is quite the detective,’ Indy said, touching Hannah on the arm.

Hannah shook her head. ‘He mentioned something about emails but she didn’t send him any, so I checked his office and found pictures of them together. She also had a second phone, we presume Peter got rid of it. But we have the number and the police are getting a list of calls. Plus there’s forensics too, at the murder scene, but also Mel was pregnant. So we’re waiting for DNA to confirm Peter was the father.’

‘That doesn’t necessarily mean he killed her,’ Craig said.

‘But it gives him a motive if she was going to tell his wife.’

Hannah lifted her phone from the worktop and dialled Thomas’s number again. She was ready to leave another message but he answered on the third ring.

‘Hi, Thomas, it’s Hannah.’

‘Sorry, things have been hectic around here.’

‘So where are we?’

Hannah saw Craig and Indy share a look of concern. She felt in limbo, she couldn’t relax until she knew what happened.240

‘We got DNA back half an hour ago,’ Thomas said.

‘And?’

‘There’s no match. Peter Longhorn wasn’t the father of Melanie’s child.’

Drouthy’s was a scabby sports bar on the corner of West Preston Street and Summerhall Place. The Celtic-band logo and old-time font on their lettering had the air of a Scottish theme bar, but inside it was a standard football pub with cheap lager promos and pungent toilets. It was in the heart of the student neighbourhood and Hannah lived ten minutes away, but she’d never been in before.