A wormer, not a hacker, has broken into the mainframe at the First Interstate Bank of Louisiana and planted a program that will wipe out all the bank's files unless a ransom of $5 million is paid. Enter Jack Lynch, former public-relations director at First Interstate (Murphy's Fault, Smash Cut), who interrupts his new domestic arrangements--new office, new apartment, willing new neighbor (psychiatrist P.J. Campbell) across the hall--to go on the bank's tab hunting the electronic extortionist. No, he doesn't pick the perp out from the bank's faceless officers and minions in time to forestall the payoff, but once he finds the links between a bank VP and the crooked new Louisiana Lottery Commission, it's all over for the hapless wormer, and everybody else. A high-tech, low-tension case less interested in plot surprises- -or the mechanics of computer crime and detection--than in tired rehashes of Jack's earlier adventures. For fans and relatives only.