Thus story is based in Arthur Connan Doyle's Sherlock Holmes. I have been talking with a friend of mine and he strongly asked me to make a fanfic in MLP about this, so here it is!
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Dr. John Watchson is a war veteran who list it all in war. His life was over until a curious pony named Searchlock Holmes appeared on his doorstep claiming to be a detective. His life will change in a way he never expected...