What is the English translation of final Latin quote in A Study Scarlet?

You are likely referring to the Latin phrase that appears at the end of Arthur Conan Doyle's *A Study in Scarlet*: "Faciam, ut mei memineris".

This translates to "I will make you remember me" in English.

It is the chilling final words of the villain, Jefferson Hope, and it serves as a reminder of his revenge and the lasting impact of his actions.