Searching for the true killer of Count Drebber, Sherlock and John set a trap for the culprit using a wedding ring found at the murder scene as bait. After a struggle in which the ring is lost, Sherlock is able to deduce who the real killer is.
"I found a golden ring in 3 Lauriston Gardens,
off the Brixton Road.
عثرت على خاتم في حدائق لوريستون، خارج طريق بريكستون"
Ich habe in Lauriston Gardens Nr. 3,
neben der Brixton Road,
"Encontré un anillo dorado
en la calle Lauriston Gardens número 3,
« Au 3, Lauriston Gardens
près de la rue Brixton,
"Encontrei um anel na
Lauriston Gardens, número 3,
«В доме номер 3 по Лористон-Гарденс,
 близ Брикстон-роуд,