I have a briefcase full of papers which describe cases Sherlock Holmes has investigated. Some are failures, since there were no final 1 for the mysteries in question. A problem without a solution may interest the 2 , but will offer little to the general reader. Among these unfinished stories is that of the yacht Alicia which one morning sailed into the mist and disappeared forever; the vessel and the crew were never seen again. Then there was the case of the well-known journalist Luigi Persona, who was found 3 mad with a jar in front of him. The jar contained a remarkable worm, unknown to science up to that point. Apart from these mysterious cases for which Holmes did not find solutions, there are those which various 4 people would rather not see in print and those which might affect the 5 of Holmes himself, for whom I have more respect than for any man alive.