(Crossover of PJO and Thor.) A new tension is brewing between the gods. Both Greek and Asgardian sides are quietly and stealthily readying for war but the usually peaceful goddess, Hestia forces the two sides to meet in the middle and settle out how to stop an oncoming and unnecessary battle that would surely end bloody. Their terms come down to an even exchange. "We will both choose a champion to exchange for a month. If said champions survive the month, then there will be no war, agreed?" Two weeks later the champions are chosen, and Percy Jackson and Thor Odinson switch sides.