Ten years of life in the new world flew by in a flash. During this period, Arthur achieved everything that could be achieved. The beautiful wife is loved and loves, the children are growing up, things are going well... What else is needed for happiness? And suddenly there is war. An unexpected war, with an enemy who has united the strongest army and navy in this world. It's time to answer the question: have you, a person who arrived from a world several centuries ahead of the local one in its development, done everything to ensure that the enemy is defeated? Just keep in mind: there is a more terrible enemy. And he is behind your back, ready to unexpectedly strike at the most precious thing you have. I wish I knew who exactly he is.