You are an employee of the Institute of Experimental History. The work, by the way, is still the same - wandering through parallel realities and restoring violated historical justice! Your new task seems simple - and in some ways even exciting. Find the legendary sword, allegedly forged by the dwarves (doubtfully) from Atlantean silver (also, you know...), and, demonstrating loyalty and devotion to the crowned nonentity named prince - sorry, already king - John, prevent the coming war between England and France. At any cost. But... the agents, carefully camouflaged as holy hermits, excuse me, are dying, the pirates are behaving absolutely differently than decent gentlemen of fortune should, and the crowned nonentity John is generally beyond the bounds of reality. Any. Including parallel ones. In general, the flag (that is, the knightly banner) is in your hands, Mr. Scientific Operative. This is where it starts...