Every year, the king recruits recruits to his guard - the knights. All young men want to get this place, especially those who do not have titles and wealth. The road is open to all, and service in the royal guard promises great privileges and a secure future if it is not killed in war. But to get into the ranks of the guards is not so easy. The monarch came up with five difficult tests and not only to test physical strength, quick reaction and endurance, but also the ability to think logically. Our hero in The King's Trials has already passed four tests and quite successfully. It remains the last and most difficult. It is necessary to find the required objects for the minimum period of time.