Henry Bate, Devant’s illusion builder, is writing to Devant in Aberdeen about a box trick. Devant had to return it to Bate because of a problem, which Bate says he has now resolved. A transcript of the first page is: Dear Mr Devant, Box duly arrived, you were quite right, the awful jerking on Rail had simply misplaced a part of the mechanism, nothing was either broken or out of order. I have placed with other papers, in Box, a full explanation of what occurred and the means taken to prevent it in future. I hope you will understand exactly what I mean. I feel certain everything is quite safe now. I want you to examine . . .