Arrow in the Heart — Denise Robins

Following a summer romance in Brighton, young Lucie Reed falls passionately in love with handsome Nat Randall. Lucie is desperate to be anew with Nat and takes a job as a matron at boy's private Kenwood Hall School, where he is a master of History and English. But Nat had never meant to see her again, he had other plans... Barbara Friern, the headmaster's daughter happens to be in love with him too. And Lucie discovers that when hen a girl is in love with a man and her love is not returned life can be very miserable. And when that man loves another the pressures on the girl can be well-nigh unbearable. This is the unfortunate position of Lucie whilst Nat is apparently in love with Barbara. Now, a battle is joined between the two girls over the philandering Nat. Was he having an affair with Barbara? Had Lucie come blundering into Kenwood Hall only to have her heart battered and bruised all over again?