Read the excerpt from “The Treasure of Lemon Brown.”The old man looked out, then beckoned frantically for Greg to follow him. For a moment Greg couldn’t move. Then he found himself following Lemon Brown into the hallway and up the darkened stairs. Greg followed as closely as he could. They reached the top of the stairs, and Greg felt Lemon Brown’s hand first lying on his shoulder, then probing down his arm until he finally took Greg’s hand into his own as they crouched in the darkness.“They’s bad men,” Lemon Brown whispered. His breath was warm against Greg’s skin.Which relationship change occurs in this part of the story?