"burn this letter' [HOUN]
Over at SolarPons.com, Bob Byrne has dedicated the site to introducing people to the Sherlock Holmes of Praed Street. Created by August Derleth in the 1920s, it was a kind of natural extension of Conan Doyle's works. After Derleth's death, the pen was ably taken up by Basil Copper with The Dossier of Solar Pons.
The reason we mention Mr. Byrne here is because he has produced a series of newsletters for Solar Pons enthusiasts as well as a more general Sherlockian newsletter called Baker Street Essays. We've provided the latest version embedded here for your consideration. You can flip through it, download it, share it, print it, etc.
Baker Street Essays 3
And if you're interested in learning more about Solar Pons, you can click on this link for additional reading material.