Murder on the Class Trip

"Drafted as chaperones, Maya Kendrick and PTA president Sandra Wallage are accompanying the SoPo High seniors to the nation's capital...Now both moms are about to find out which is harder--shepherding unruly high schoolers or solving a murder. The last sight they expected to see on this trip is a female intern who works for Sandra's soon-to-be-ex-husband, Senator Stephen Wallage, in a fatally compromising position"--