“‘He who will come.’

“‘Where was the sun?’

“‘Over the oak.’

“‘Where was the shadow?’

“‘Under the elm.’

“‘How was it stepped?’

“‘North by ten and by ten, east by five and by five, south by two and by two, west by one and by one, and so under.’

“‘What shall we give for it?’

“‘All that is ours.’

“‘Why should we give it?’

“‘For the sake of the trust.’

“‘The original has no date, but is in the spelling of the middle of the seventeenth century,’ remarked Musgrave. ‘I am afraid, however, that it can be of little help to you in solving this mystery.’

“‘At least,’ said I, ‘it gives us another mystery, and one which is even more interesting than the first. It may be that the solution of the one may prove to be the solution of the other. You will excuse me, Musgrave, if I say that your butler appears to me to have been a very clever man, and to have had a clearer insight than ten generations of his masters.’

“‘I hardly follow you,’ said Musgrave. ‘The paper seems to me to be of no practical importance.’

“‘But to me it seems immensely practical, and I fancy that Brunton took the same view. He had probably seen it before that night on which you caught him.’

“‘It is very possible. We took no pains to hide it.’

“‘He simply wished, I should imagine, to refresh his memory upon that last occasion. He had, as I understand, some sort of map or chart which he was comparing with the manuscript, and which he thrust into his pocket when you appeared.’

“‘That is true. But what could he have to do with this old family custom of ours, and what does this rigmarole mean?’

“‘I don’t think that we should have much difficulty in determining that,’ said I; ‘with your permission we will take the first train down to Sussex and go a little more deeply into the matter upon the spot.

“The same afternoon saw us both at Hurlstone. Possibly you have seen pictures and read descriptions of the famous old building, so I will confine my account of it to saying that it is built in the shape of an L. the long arm being the more modern portion, and the shorter the ancient nucleus from which the other has developed. Over the low, heavy-lintelled door, in the centre of this old part, is chiselled the date, 1607, but experts are agreed that the beams and stonework are really much older than this. The enormously thick walls and tiny windows of this part had in the last century driven the family into building the new wing, and the old one was used now as a storehouse and a cellar, when it was used at all. A splendid park with fine old timber surrounds the house, and the lake, to which my client had referred, lay close to the avenue, about two hundred yards from the building.