one o’clock
`` Poison , '' said Sherlock Holmes curtly , and strode off . `` One other thing , Lestrade , '' he added , turning round at the door : ``` Rache , ' is the German for ` revenge ; ' so do n't lose your time looking for Miss Rachel . '' With which Parthian shot he walked away , leaving the two rivals open-mouthed behind him . IT was one o'clock when we left No. 3 , Lauriston Gardens . Sherlock Holmes led me to the nearest telegraph office , whence he dispatched a long telegram . He then hailed a cab , and ordered the driver to take us to the address given us by Lestrade . `` There is nothing like first hand evidence , '' he remarked ; `` as a matter of fact , my mind is entirely made up upon the case , but still we may as well learn all that is to be learned . ''