Harry Stephen Keeler is an odd and interesting author. Not truly an "outsider" artist in the strictest (e.g.,Grandma Moses) sense--as he was clearly well educated as a writer--nevertheless, he is the possessor--if "possessor" be the word--of a truly odd and truly unique style. Not mysteries in the traditional "who-done-it" sense --in one story the family cats turn out to be the culprit, in another, two characters, both, it turns out, in disguise, unbeknownst to each other are each other; you figure it out--they, nevertheless, were marketed as such. Keeler's early novels (e.g., the Voice of the Seven Sparrows, The Spectacles of Mr. Cagliostro) are more adventure stories, with a surprising (and wholly unpredictable) denouement. His Later works devolved into the form of long conversations in which the "mystery" was described by one or more of the characters present. The other overriding feature of his works was his use of what he termed a "webwork" plot, in which multiple seemingly unrelated and unrelatable events and characters somehow are related in surprising and often unbelievable ways, all of which leads up to the denouement (think of the conclusion of season 3 of Lost). Keeler's style is distinct, as is his punctuation (he prefers the dash to almost any other mark) although it would be difficult to call him a good writer--he lacks the niceties of other mystery writes such as Hammitt, or Chandler, or even Spillane--nor is it proper to call him a noir writer as there is very little sex or violence and his protagonists are invariably good and innocent (often a little naive and even a bit dim). On the other hand he seems to prefer oddball characters, including lots of midgets, carnies, circus stars, etc, and oddball plots (mysterious death rays, strange wills, unusual safes, "oriental" lore, crazy corpses, mummies, trepanned skulls). There is much of this type of oddball in "Traveling Skull." And while it is not Keeler at his best (earlier) or oddest (later), it does furnish an enjoyable, affordable, available and characteristic introduction to this singular and dubiously worthy, if not "good" author.