"[Frank and Joe Hardy] decide that in the best interests of their client, everyone would be better off if the Hardy Boys were dead! But before they launch their journey into that long "Hardy Day's Night," the Undercover Brothers face their "Opposite Numbers," the deadly Noir Sisters, seek out killers at the "Board to Death" extreme skateboarding competition and at the All-State Drama competition, where one of the Hardy Boys falls deeply in love-- with the wrong girl!" -- page 4 of cover.

"Based on the series by Franklin W. Dixon." Volume numbering from spine and verso.

The opposite numbers --Board to death -- To die or not to die? -- A Hardy day's night.