Fierce Kingdom, Phillips - B +

                                              You can't turn the pages fast enough and you wind up scanning in order to keep up with as fast-paced and taut a thriller as you'll find. Joan and her 4-year-old son Lincoln are finishing up at the zoo when two, maybe three, active shooters start up. Her first hiding place is the empty porcupine cage. They run, hide, are shot at and on they go running and  running and hiding. All of the reviewers refer to it correctly as a one-sitting, can't-put-down read.