Walker in a straitjacket.

      When it was time for the magic, one name kept recurring like marked aces. Bayard Grimshaw, who had died in 1994, was a recipient of a great many letters in the sale, and he appeared to be one of magic’s few super-groupies. He was a magic correspondent for World’s Fair, the weekly newspaper for showmen, and he became friends with many of magic’s stars. Perhaps seeing a gap in market, and a gullible public, he also became a performer himself, touting a mind-reading act with his wife Marion. In so doing he achieved an illusionist’s connoisseurship and the trust of the Magic Circle, and amassed a large hoard of oddments and correspondence. Perhaps he thought they would be valuable one day.

      As a keen collector – stamps, tube maps, the usual male detritus – I had been to a few auctions before, but none were as sparsely attended as this. By the time the books had been sold there were about 15 of us left, and I recognised half of them from the preview the previous day. Most of those who had attended for the books portion had drifted away, and although a few others joined us on the phone and online, the prices rarely exceeded their upper estimate, which filled me with hope. And those who were there seemed predominantly interested in the props and physical tricks rather than documents. But just as I began to feel confident that I would get the Walker letters for a steal, or at least something near the lower estimate of £300, a few of the items started going for three or four times their estimate, and a handful went for more than £1,000. One of these was a vast hoard of card tricks, the earliest dating from 1820, an array of ‘forcing decks’, ‘moving pip cards’ and ‘waterfall shuffle’ packs, the names themselves so alluring that I had to check my urge to buy them on impulse.

      The lot simply titled ‘Mentalists’ was a collection of letters relating to mind-reading, with a detailed account of an act performed by The Great Nixon, and one letter from 1938 suggesting that The Great Nixon was such a phenomenon that he might be worthy of investigation in a laboratory. The Great Nixon was a sham, of course, and only as great as his stooge in the audience. But such was the allure of the performers in this period that I imagined an audience where few were prepared not to believe; they wanted the trick not to be a trick, but to be magic. The world held enough impending horrors in 1938, so why be cynical when you could be amazed? It wasn’t like today, when magic can only be a trick, and the pleasure is not in the illusion but in figuring it out.

The auction wore on, through several items featuring Madame Zomah and seven letters mentioning the Piddingtons.* Surely it was only a matter of time before Henry the Horse danced the waltz. But then it was my time, lot 512. The bidding started slowly. No one was interested in the Radium Girl anymore, much less Aquamarine Girl. But then of course it picked up. The bidding was soon at £200. I had promised myself and my wife I wouldn’t go above £400. It went to £260, then to £280. I was so hooked now that I didn’t even lower my hand between bids when a higher counter-bid came in. I just kept on going. I didn’t even know who I was bidding against – an anonymous voice on the phone taken by an auction house staff member. Then the bidding stopped, and I was the last one interested. The gavel came down at £300 to no reaction whatsoever, no gasps, no applause, just another lot sold, and immediately it was on to lot 513. But I had triumphed: I got his letters, and his letters got me.

      When I got them home I read again how to saw a girl in half (a trick box, a very supple assistant, a pair of electronically controlled feet at one end) and also how to make it look as though a cabinet was smaller than it was (black tape, a crafty angle to the audience, an assistant who can really hold her stomach in). But not all knowledge can be written down, and the art of magic, rather than just an explanation of it, cannot be taught but must be learnt, by example and crushing hours of practice. Even a full written explanation, quite apart from breaking the Magician’s Code, would be like showing someone the cockpit of a plane and expecting them to fly. But occasionally the letters would preserve a record of well-honed stage patter:

      Today I’d like to show you one of the most fantastic stunts you are ever likely to see. Behind this curtain we have a very odd looking telephone booth. There is nothing strange about the inside. Open it and show. Except that there are small holes bored thru the top and base. Honey [Miss Honey Duprez] goes inside the cabinet and we thread the ropes thru these holes to the outside. Music whilst you do this. Put mike back on stand. After threading is done take up the mike again. We are going to try a sequence of completely impossible effects. You’ll notice a festive air about this place today . . . It’s the manager’s birthday. He’s just turned 25 . . . he was 52 before he turned it.