A. E. W. Mason 
The House in Lordship Lane 

Julius Ricardo hitches a lift home across the English Channel to see his friend Inspector Hanaud and en route picks up an escapee from a prison ship, who holds a grudge against Daniel Horbury, M.P. When Horbury is found dead at his home in Lordship Lane, Inspector Hanaud and Ricardo assist Scotland Yard in the investigation, which also involves the owner of a shipping line.