On the same night, after Kevin and Oliver defeated George and his subordinates, Kevin hid the archievement namely iron armor and several horns in a safe place, he stored all of it in an unused house that was rarely visited by other people. And Kevin decided to spend the night there, he took the extracting tube that he kept in the trunk of his motorcycle, then he used the tube to extract the horns of the monsters into a source energy of bullets.
Kevin can't save and extract the horns for the next day, because if he leave them for too long, the horns will melt and disappear by themselves. Therefore Kevin must extract it right away. He did it alone there, because he had ordered Oliver to go home to rest and recover. As for the mother, Kevin had already given the excuse that currently he w
