Complex sentence: After two attempts at kidnapping, Spenser takes Paul in and helps him mature by teaching him box, exercising, weight-lifting, and building a cottage on some property in Maine that belongs to Susan Silverman.
Split into simpler sentences: After two attempts at kidnapping, Spenser takes Paul in and helps him mature by teaching him boxing, exercise, and weight-lifting. Together they build a cottage on some property in Maine that belongs to Susan Silverman.