Complex sentence: The arrest ignites the wrath of the patriarch of the Danby family (Brennan); while the rest of the town immediately quiets down under McCullough's reign, "Pa" mounts various efforts to get Joe out of jail.
Split into simpler sentences: The arrest ignites the wrath of the patriarch of the Danby family (Brennan). While the rest of the town immediately quiets down under McCullough's reign, "Pa" mounts various efforts to get Joe out of jail.