" How much for everything?" he said.

" Fifteen dollars," said the old woman.

Lias sighed and straightened up. There was a distant look in his eyes for a moment, and then he hit himself on the jaw. He fumbled around inside his mouth with a finger and then produced...

Imp stared.

" Here, let me have a look," said Glod. He snatched the thing from Lias's unprotesting fingers and examined it carefully. "Hey! Fifty carats at least!"

" I'm not taking that," said the old woman. "It's been in a troll's mouth!"

" You eat eggs, don't you?" said Glod. "Anyway, everyone knows trolls' teeth are pure diamond."

The old woman took the tooth and examined it by candlelight.

" If I took it along to one of those jewellers in Nonesuch Street they'd tell me it's worth two hundred dollars," said Glod.

" Well, I'm telling you it's worth fifteen right here," said the old lady. The diamond magically disappeared somewhere about her person. She gave them a bright, fresh smile.

" Why couldn't we just take it off her?" said Glod, when they were outside.

" Because she's a poor defencelless olld woman," said Imp.

" Exactly! My point exactly!"

Glod looked up at Lias.

" You got a whole mouthful of them things?"

" Yup."

" Only I owe my landlord two months' re–"

" Don't even fink about it," said the troll levelly.

Behind them, the door slammed shut.

" Look, cheer up," said Glod. "Tomorrow I'll find us a gig. Don't worry. I know everyone in this city. Three of us... that's a band."

" We haven't even practised together properlly," said Imp.

" We'll practise as we go along," said Glod. "Welcome to the world of professional musicianship."

Susan did not know much about history. It always seemed a particularly dull subject. The same stupid things were done over and over again by tedious people. What was the point? One king was pretty much like another.

The class was learning about some revolt in which some peasants had wanted to stop being peasants and, since the nobles had won, had stopped being peasants really quickly. Had they bothered to learn to read and acquire some history books they'd have learned about the uncertain merits of things like scythes and pitchforks when used in a battle against crossbows and broadswords.

She listened half‑heartedly for a while, until boredom set in, and then took out a book and let herself fade from the notice of the world.

SQUEAK!

Susan glanced sideways.

There was a tiny figure on the floor by her desk. It looked very much like a rat skeleton in a black robe, holding a very small scythe.

Susan looked back at her book. Such things did not exist. She was quite certain about that.

SQUEAK!

Susan looked down again. The apparition was still there. There had been cheese on toast for supper the previous night. In books, at least, you were supposed to expect things after a late‑night meal like that.

" You don't exist," she said. "You're just a piece of cheese."

SQUEAK?

When the creature was sure it had got her full attention, it pulled out a tiny hourglass on a silver chain and pointed at it urgently.

Against all rational considerations, Susan reached down and opened her hand. The thing climbed on to it ‑ its feet felt like pins ‑ and looked at her expectantly.

Susan lifted it up to eye level. All right, perhaps it was a figment of her imagination. She ought to take it seriously.

" You're not going to say something like "Oh, my paws and whiskers", are you?" she said quietly. "If you do, I shall go and drop you in the privy."

The rat shook its skull.

" And you're real?"

SQUEAK. SQUEAKSQUEAKSQUEAK­–

" Look, I don't understand," said Susan patiently. "I don't speak rodent. We only do Klatchian in Modern Languages and I only know how to say "My aunt's camel has fallen in the mirage". And if you are imaginary, you might try to be a bit more... lovable."

A skeleton, even a small one, is not a naturally lovable object, even if it has got an open countenance and a grin. But the feeling... no, she realized... the memory was creeping over her from somewhere that this one was not only real but on her side. It was an unfamiliar concept. Her side had normally consisted of her.

The late rat regarded Susan for a moment and then, in one movement, gripped the tiny scythe between its teeth and sprang off Susan's hand, landed on the classroom floor, and scuttled away between the desks.

" It's not even as if you've got paws and whiskers," said Susan. "Not proper ones, anyway."

The skeletal rat stepped through the wall.

Susan turned back to her book and ferociously read Noxeuse's Divisibility Paradox, which demonstrated the impossibility of falling off a log.

They practised that very night, in Glod's obsessively neat lodgings. These were behind a tannery in Phedre Road, and were probably safe from the wandering ears of the Musicians' Guild. They were also freshly painted and well scrubbed. The tiny room sparkled. You never got cockroaches or rats or any kind of vermin in a dwarf home. At least, not while the owner could still hold a frying‑pan.

Glod and Imp sat and watched Lias the troll hit his rocks.

" What d'you fink?" he said, when he'd finished.

" Is that all you do?" said Imp, after a while.

" They're rocks," said the troll, patiently. "That's all you can do. Bop, bop, bop."

" Hmm. Can I have a go?" said Glod.

He sat behind the array of stones and looked at them for a while. Then he rearranged a few of them, took a couple of hammers out of his toolbox, and tapped a stone experimentally.

" Now, let's see..." he said.

Bambam‑bamBAM.

Beside Imp, the guitar strings hummed.

" Without A Shirt," said Glod.

" What?" said Imp.

" It's just a bit of musical nonsense," said Glod. "Like "Shave and a haircut, two pence"?"

" Sorry?"

Bam‑bam‑a‑bambam, bamBAM.

" Shave and haircut good value for two pence," said Lias.

Imp looked hard at the stones. Percussion wasn't approved of in Llamedos either. The bards said that anyone could hit a rock or a hollow log with a stick. That wasn't music. Besides, it was... and here they'd drop their voices... too animal.

The guitar hummed. It seemed to pick up sounds.

Imp suddenly had a nagging feeling that there was a lot you could do with percussion.

" Can I try?" he said.

He picked up the hammers. There was the faintest of tones from the guitar.

Forty‑five seconds later, he put down the hammers. The echoes died away.

" Why did you hit me on the helmet at the end there?" said Glod, carefully.

" Sorry," said Imp. "I think I got carried away. I thought you were a cymball."

" It was very... unusual," said the troll.

" The music's... in the stones," said Imp. "You just have to llet it out. There's music in everything, if you know how to find it."

" Can I try dat riff?" said Lias. He took the hammers and shuffled around behind the stones again.

A‑bam‑bop‑a‑re‑bop‑a‑bim‑bam‑boom.

" What did you do to them?" he said. "They sound... wild."

" Sounded good to me," said Glod. "Sounded a whole lot better."

Imp slept that night wedged between Glod's very small bed and the bulk of Lias. After a while, he snored.

Beside him, the strings hummed gently in harmony.

Lulled by their almost imperceptible sound, he'd completely forgotten about the harp.

Susan awoke. Something was tugging at her ear.

She opened her eyes.

SQUEAK?

" Oh, nooo–"