“Youcarryyouryearswell，Mr。Sabin。Yetwhileweareonthesubject，doyouknowthatLondonistheunhealthiestcityintheworld？“
“Iamalwaysremarkablywellhere，“Mr。Sabinsaiddrily。
“Londonhaschangedsinceyourlastvisit，“LordRobertsaid，withagentlesmile。“BelievemeifIsay-asyoursincerewell-wisher-thatthereissomethingintheairatpresentpositivelyunwholesometoyou。Iamnotsurethatunwholesomeisnottooweakaword。“
“Isthisofficial？“Mr。Sabinaskedquietly。
Theyoungmanfingeredthegoldchainwhichdisappearedinhistrouserspocket。