Every Wise Man (Harlequin Romance #2102)

When Olivia Darcy went to work as secretary in the delightful Raynor household, she got on happily with everybody - with her boss, Charles Raynor, and two of his sons, Paul and Julian. Everybody except one, the third son, Matthew, who had seemed to take an instant dislike to her. But why? It wasn't as if he could possibly know her secret...