This is part of the whole cottage industry which produces riffs upon and spin-offs of Arthur Conan Doyle's classic Sherlock Holmes stories. The author is actually listed as "John Watson, M.D." and Millett is listed as the "editor" in order to preserve the total illusion that this is a "lost" manuscript only recently recovered and edited, complete with footnotes of explanation. This premise, although hokey in one sense, was actually quite effective in getting me into the spirit of the book. This book alleges to account for some of the missing time of the dynamic duo by placing them in Minnesota in 1894. I confess to being a neophyte to the Holmes canon, having read only a few stories and been mostly exposed to it via the excellent British television productions. Thus, I am in no position to comment on the books faithfulness, or lack thereof, to the details of the series, or to the replication of writing style. However, it is a fun read. Based on a great deal of historical research, the book has Holmes and Watson hired by a rail baron to solve the mystery of a mysterious outbreak of arson attacks on his line. The mystery itself isn't too tricky, but a rousing conclusion more than makes up for any other deficiencies. A must for Holmes fans, and a good period mystery even if you're not a big Holmes reader.