‘Right,’ said Lucius. ‘I’m sure that’ll make a big difference.’
Ruso closed his eyes, took a deep breath and slid down to the privacy of the bottom of the bath.
Forty-five, forty-six … He shot up, gasping in air and releasing the illogical panic clutching at his chest. When he had wiped the water out of his eyes and his breathing had settled down, the thought that had flashed and faded in his mind while he was counting returned. ‘Who, how and why?’
‘What?’
‘The things we need to find out about the poisoning. Who did it, how, and why.’
‘I’m a simple farmer,’ pointed out Lucius. ‘And nobody trusts doctors. So how are we going to do that, who would tell us anything, and why would they want to?’
‘It’s like geometry,’ Ruso persisted, ignoring him. ‘Find two angles of a triangle, and it doesn’t matter if you don’t know the third one. You can work it out.’
Lucius eyed him for a moment, then reached for the wine. ‘If you’re going to try saving the family with geometry,’ he said, ‘I need another drink.’
‘I haven’t got very far with how,’ Ruso admitted. ‘I don’t know what the poison was, and Claudia says none of the other doctors who looked at him could agree either.’
‘Well I never,’ said Lucius, shaking the flagon and trying to peer inside it. ‘Doctors who don’t agree.’
‘Who, then? It must be somebody on the Senator’s estate or somebody here.’ As an afterthought he added, ‘Or somebody he met on the way over.’
Lucius tipped up the flagon to drain the last few drops. ‘Well done, Gaius. You’ve really narrowed it down there.’
Fighting an urge to shove his brother’s head under the water, Ruso said, ‘It’s not that bad. Obviously not everybody Severus came into contact with would want to kill him.’
‘Oh, I don’t know,’ said Lucius sliding down until he could lay his head back on the edge of the bath with his eyes closed. ‘You met him, what did you think?’
Ruso paused for a moment. ‘It doesn’t sound as though Cass is out there.’
‘Somebody will be.’
‘We’ve got to think logically. The likely suspects are …’ Ruso began to count on his fingers.
‘You’ll need to use your toes as well,’ said Lucius. ‘And mine.’
‘We’ll start with the estate staff.’
‘Dozens of them, and I bet nobody liked him.’
‘Number one is the staff, collectively,’ said Ruso. ‘Taking numbers two and three together for a minute — Claudia and the sister. They won’t have read the will yet because of the murder, but they’re bound to inherit whatever he had to leave.’
‘Sisters don’t murder brothers to get hold of their money. They just nag them till they hand it over.’
‘Actually I don’t think he had enough to make it worth the bother,’ Ruso conceded. ‘Even the servants nearly all belonged to the Senator, which is why Claudia’s now being elbowed aside by the steward. And she wasn’t a happy wife, but she didn’t need to kill him to escape. She could have divorced him.’
‘It’s not that easy,’ muttered Lucius.
‘It is for Claudia,’ said Ruso. ‘The sister, Ennia. Claudia says she and Severus argued a lot.’
‘It’s not her, Gaius. You saw her with the body.’
Remembering the sight, Ruso said, ‘She was about to kiss him on the lips before I stopped her. You wouldn’t do that if you’d poisoned somebody. Fourth, there are his business enemies, but unless someone intercepted him on the way over or bribed one of the servants, it’s hard to see how they would have done it.’
‘If we start poking around, they’ll be our enemies too.’
‘Claudia’s going to see what she can find out from Probus.’
‘Why is Claudia being nice to us?’
‘Because I was a better husband than Severus,’ said Ruso, prouder of the speed with which he had dreamed up this answer than he was of the way he had really obtained Claudia’s cooperation.
‘She won’t get much out of Probus if he finds out you’re behind it. I still think she did it.’
‘Then there are the people here. Number five, we can count our stable lad out, even if he didn’t approve of Severus’ treatment of his horse. Six, our kitchen-boy drew the water but wouldn’t have a reason to murder him. I know I didn’t do it, so number seven is …’
Lucius sat up so quickly that the water slopped over and landed with a splat on the floor tiles. ‘Cass has got nothing to do with it.’
‘I’m sure I’ll be able to rub her off the list as soon as I’ve spoken to her.’
‘Thanks. Very gracious.’
Ruso cleared his throat. ‘Tilla thought we ought to take a look at Probus,’ he said, not adding that Tilla, too, now suspected Claudia.
‘So
Ruso was determined not to be distracted. ‘She’s picked up some gossip about Severus borrowing a lot of money from him to finance the ship that sank.’
‘Then Probus wouldn’t poison him, would he? He’d want him alive to pay it back. Face it, Gaius. It’s obvious. Claudia did it.’
Ruso’s mind was turning over a question that had not occurred to him before. ‘Why was Justinus on the ship in the first place?’
‘Or maybe it was your girl who did it. Perhaps she fed him some wild barbarian potion, trying to do you a favour.’
‘Tilla was in town. You haven’t answered the question. Why was Justinus on the ship?’
Lucius rubbed one ear and wiped a black smear of hair lotion across his cheek. ‘To keep an eye on the business, I suppose.’
‘But why — ’
‘Holy gods, Gaius! The man’s dead: it doesn’t matter! Stick to the point. Do you realize that if
Ruso closed his eyes and prayed for patience. ‘Then perhaps,’ he said, ‘since you can see all the problems so clearly, you might try thinking what you can do to help, instead of knocking aside everything I’m trying to suggest.’
Lucius’ hand slapped on to the surface, splattering them both with water. ‘I tried to help! I warned you not to drag the family into a murder case, but you wouldn’t listen to me!’ He shoved himself away from the side of the bath. His voice echoed from the domed ceiling. ‘I had all this debt business under control, too, but no, you had to interfere! You’ve never listened to me. Even when we were children. You were always right!’
‘I was older!’
‘You still think I can’t manage without you!’
‘I’ve never said that.’
‘You didn’t have to! Poor old Lucius, can’t do without his big brother. You think this is all my fault and you’re going to sort it out, don’t you?’
‘It is your fault! If you’d just stopped to get a receipt from Severus we’d never have been in this mess!’
‘There never was a letter, was there? Admit it, Gaius!’
‘Of course there was! Ask Tilla.’
‘What does she know? She can’t even read!’
The boom of their voices collided over the splashing as Lucius grabbed his brother and yelled into his face, ‘You just came home to check up on me!’
‘No, I didn’t!’
It was a stupid, childish fight that turned into something worse. The kicking and splashing and grabbing and grunting and yelling, ‘Get off!’ and ‘Admit it!’ and ‘No!’ and ‘You made it up! Admit it!’ and ‘No!’ turned into heavy punches and pain.
Lucius, shorter but heavier, had Ruso’s face within an inch of the surface, yelling, ‘No, I didn’t!’ when Ruso suddenly felt him slacken his grip. He became aware of another voice. A smaller, higher voice, calling, ‘Papa! Uncle
