The wherryman guided the little boat to the jetty, grasping at a ladder fixed to the end. Barak climbed nimbly up. I followed more carefully.
'Come back for us in an hour,' Barak told the boatman, passing him his fare. He nodded and cast off, leaving us alone. I looked round. Everything was silent and still, the surrounding reeds whispering in the light breeze, richly coloured butterflies flitting among them.
'I'll just check the shed,' Barak said, 'in case some vagabond has made a home there.'
As he went to peer through the warped boards of the shed, something dangling from a ring in an iron bollard caught my eye. A thick, knotted hemp rope, such as might be used to tie up a boat, hung over the end of the jetty. I drew it up. There were only about two feet of rope; the end was charred. It had been burnt right through.
Barak rejoined me. 'All clear.' He passed me a leathern bottle. 'A drink?'
'Thank you.' I unstoppered it and took a draught of small beer. Barak nodded at the rope which I still held. 'That's all that's left of the boat I tied up there.'
'Tell me,' I said quietly.
He led me into a patch of shade cast by the shed. He looked out over the river for a moment, then took another draught of beer and began his tale. He told the story with more fluency than I would have expected, a sense of wonder overcoming his usual brashness.
'Back in March my master told me to buy an old crayer, in my own name, and have it brought down here. I found one, a big thirty-foot tub, and had it rowed down and moored here.'
'I travelled from Sussex to London in a crayer once.'
'You know what they're like then. Long, heavy barges. This one was a big solid thing, with sail and oars, that used to carry coal down the coast from Newcastle. Bonaventure, she was called.' He shook his head. 'She was to have an adventure all right.
'Like I said, my master chose this place because it was out of the way. He asked me to be here at first light on a March morning, when hopefully there wouldn't be any river traffic, and wait for him. He told me I might see something strange. "More likely, though," he said, "you won't."
'Anyway, I rode down here before dawn, and damned difficult it was, following the trackways through these marshes in the dark. The old crayer was where I'd moored her, for she wasn't worth anyone stealing. I tied Sukey up and walked about, stamping my feet to keep warm as the sun came up. The strange noises those river birds make as the day starts, they made me jump a few times.
'Then I heard horses' hooves, and a creaking sound, and through the reeds I saw my master approaching on horse-back. It was strange seeing him out there. He had a lowering look on him, kept glaring at the two men accompanying him. They were on horseback and one of the horses was pulling a cart with something heavy hidden under a pile of sacking.
'They got to the wharf at last and dismounted. I got a good look at the Gristwoods for the first time. I thought them poor folk, God rest them.'
I nodded. 'Michael was an unqualified attorney. The sort who deals with small cases, pushes business for the barristers.'
'Ay, I know that sort,' Barak said with a sudden sharpness that made me glance at him. 'They were both small, skinny men, kept glancing at my master with apprehensive looks. I could see he thought all this beneath his dignity; I thought if they didn't satisfy him they'd smart for it. One of the brothers wore a skullcap and a long alchemist's robe, the complete paraphernalia, for all that it was spattered with mud from his trip through the marshes. My master had on a simple black cloak, as he does when he travels alone. He introduced me to the Gristwoods and the pair doffed their caps and scraped to me like I was an earl.' He laughed. 'I thought they were the crookedest-looking pair of arseholes I'd ever seen.
'My master ordered me to tie the horses to posts by the shed, where I'd put Sukey. When I got back, the brothers were unloading their cart. I'd never seen such a pile of strange stuff: a long thin brass pipe and a big metal handpump like some of the conduits have. The earl came over and said quietly, "Look over that boat with me, Jack. I want to be sure there's no trickery." I dared to ask him what it was all about, and he looked dubiously to where the brothers were unloading an iron tank of some sort; by the way they were sweating and grunting there was something heavy inside. He told me then that Sepultus was an alchemist and had promised to show us a great wonder with that apparatus. He raised an eyebrow, then walked over to the boat.
'I helped him in and he looked the ship over from end to end. We even went down to the hold and walked about, coughing for there was a little coal dust. He said to look for trickery, anything strange. But there was nothing; it was just the empty old tub I'd bought cheap from the ship merchant.
'When we got back on deck the brothers had set up their apparatus on the jetty. The metal tank had been attached to the pump at one end and to the pipe at the other. I caught a whiff of something from the tank. It was like nothing I'd ever smelt before, a harsh tang that seemed to go right up your nostrils into your skull.'
'Tell me more about how the apparatus looked.'
'The pipe was about twelve feet long, and hollow, like a gun barrel. Under the end they'd fixed a wick, a pot of string greased with candle wax. The other end was fixed to the tank, as I said.'
'How big was the tank? Enough to hold, say, a large barrelful of liquid?'
He frowned. 'Yes. Though I don't know how full it was.'
'No. I'm sorry, go on.'
'When my master and I got back on land we saw they'd heaved the tank onto a big iron tripod. To my surprise, they were trying to light a fire of sticks underneath it now, fussing about with flints.
'Then Michael Gristwood gave a great shout of excitement. "It's lit!" he cried. "It's lit! Move away, my lord, away from the pipe!" My master looked scandalized at being addressed so familiarly, but went to stand behind the brothers. I went with him, wondering what on earth was to happen.'
Barak paused a moment. He looked out over the water, swirling with little gurgling eddies as the tide swept in again.
'It happened very quickly then. Michael took a twig from the fire and lit the wick, then ran back, and he and Sepultus worked the pump up and down. I saw a movement at the front of the pipe and then a great sheet of yellow flame, a dozen feet long, shot out with a roaring sound, flew through the air and hit the boat amidships. It seemed to twist in the air like a live thing.'
'Like fire from a dragon's mouth.'
He shivered. 'Ay. The wood caught light immediately, the flames seemed to stick to it and devour it like an animal eating its way along a carcass. Some of the flames fell down on the water and by the throat of God I saw the water burning. Saw it with my own eyes, a patch of flames leaping up and down on the river. For a minute I was terrified the whole river might burn up, fire leaping all the way to London.
'Then the brothers turned the pipe round at an angle, pumped again, and another long gout of flame, too bright to look at, shot out and hit the stern. It seemed to leap at it like something alive. The boat was burning merrily now. The heat from that flying fire was tremendous. I was twenty feet away but my face felt scorched. Another burst of fire, and another, and then the poor old crayer was blazing from end to end. Everywhere birds were clattering up from the marshes and flying off. By Jesu, I was frightened, I'm no godly man but I was praying to Our Lady and all the saints to protect me and if my master allowed rosaries I'd have been fondling the beads till they broke.