Yoseph the Merchant of Many Things
Legend speaks of a merchant who ranges far and wide appearing only to those with the most unique tastes. It is rumored that wherever he stops, a warehouse the size of a small castle appears. He resides inside. He can provide you with amazing wonders provided you have the patience for him to find it. Tales tell of glimpses inside his magical construction of what at first glance appears to be mountains of junk. Only the careful eye and closer look reveal the true value of the treasures within. It is said that a few of the unwise have attempted to burglarize this seemingly harmless merchant. He simply retreated into his warehouse and would-be burglars followed. The lucky few that were ever seen again were only corpses, crushed, pierced, burned, broken, and occasionally dismembered. The rest have disappeared quietly inside the great warehouse. You adventurers with your odd taste and collections of valuable treasures may meet up with this amicable fellow, but be warned. He will brook no foolishness.
From accounts of those who have met him, Yoseph is often described as a tinkerer beyond compare. This falls far short of reality as his engineering capabilities have not been seen in this world. He has created everything from tiny mechanical conveniences to great siege weapons, but does not give them out to just anyone. On occasion he has been known to loan items to endangered nations who has earned his respect. His vast ability with machinery has given him a great wisdom and respect for its capabilities. As such he has never chosen to share this knowledge. This is also why no one is ever let within his abode. When questioned about his distant past, he becomes evasive. The most diligent scholars note that many of his fingerprints can be discovered in ancient libraries of the world especially around times of great change. Records of his appearances frequently show gaps of decades or even centuries between them.