Complex sentence: Hayden pleads with her to leave before things get worse than they already are; she says that she's already in too deep, and that she will take Yargo to open the Vault, before leaving.
Split into simpler sentences: Hayden pleads with her to leave before things get worse than they already are. She says she's already in too deep, and that she will take Yargo to open the Vault, before leaving.