Promised Land is the fourth Spenser novel by Robert B. Parker, published in 1976.
Spenser's dilemma is that he wants to reunite Harvey and Pam while also making sure that Rose and Jane go down for the bank guard's murder while simultaneously setting up King Powers to go to prison.
He manages to broker a gun deal to between Powers and the militants, while corresponding with the police to arrest the suspects in a sting operation with the intent of keeping the Shepards clean of the affair.
Spenser warns Hawk the day of the operation while Powers, his henchmen, and Jane and Rose are arrested.
The next day, Powers is bailed out of jail and his associates greet Spenser and Susan at the Shepards' home.