Complex sentence: The Boxtrolls suddenly arrive, having sneaked out of their boxes just before the crusher activated, and free Eggs; an infuriated Snatcher tries to take Portley Rind's hat by force, but Eggs, his father, and the Boxtrolls disable the machine.
Split into simpler sentences: The Boxtrolls suddenly arrive, having sneaked out of their boxes just before the crusher activated, and free Eggs. An infuriated Snatcher tries to take Portley Rind's hat by force, but Eggs, his father, and the Boxtrolls disable the machine.