High tide there was at 10.17 P.m.

on the 15th of June.
'We're on the scent at last,' I cried excitedly.

'How can I find out what is the tide at the Ruff ?' 'I can tell you that, Sir,' said the coastguard man.

'I once was lent a house there in this very month, and I used to go out at night to the deep-sea fishing.

The tide's ten minutes before Bradgate.' I closed the book and looked round at the company.
'If one of those staircases has thirty-nine steps we have solved the mystery, gentlemen,' I said.