Hal Meredith 
A Confidential Report [EPUB ebook] 

URGENT. COME AT ONCE.—TREVELYAN, MOSTYN MANOR.

That was all the telegram said; and, apart from the fact that Sir Otto Trevelyan, of Mostyn Manor, in Surrey, was one of the best-known financial magnates in the City of London, that was all that Sexton Blake knew of the case when he left his rooms in Baker Street and drove to Waterloo.