“Hence the health-giving expedition to Lausanne. You know that I cannot possibly leave London while old Abrahams is in such mortal terror of his life. Besides, on general principles it is best that I should not leave the country. Scotland Yard feels lonely without me, and it causes an unhealthy excitement among the criminal classes. Go, then, my dear Watson, and if my humble counsel can ever be valued at so extravagant a rate as two pence a word, it waits your disposal night and day at the end of the Continental wire.”