"Tio luis's face hardened like a rock and the mucles twitched in his narrow neck."this means he was getting angry. His face was getting red and he was errotated. He was getting ready to fight.
"she could haer it,too. The beat rushing in her ear. shoomp, shoomp, shoomp."This means she heard the earthbreathing. The earth was making sounds when she had her ear on thre ground.The earths heart was beating.
"Esperanza couldn't talk her heart felt so big and hurt so much that it crowded out her voice"This means she was about to get upset. She did not fill happy her heart was dark.Her heart was filled with venom for tio loius.