Deeper Than Desire — Cheryl Holt

SHE HAS A WICKED SECRET...
With her family in dire straits, Olivia Hopkins reluctantly agrees to seek a marriage proposal from the aging Earl of Salisbury. But the plan goes awry when she finds an erotic volume in the earl's library. The book sets Olivia's body on fire. She simply cannot put it down -- until she is caught red-handed by the Earl's devilishly handsome son -- a man who quickens her pulse and stirs her imagination with thoughts she's never dared entertain...

AND HE'LL KEEP IT...FOR A PRICE
Phillip Paxton can't believe his good luck. Catching Olivia with the scandalous volume offers a superb chance to humiliate the father he despises. Using the book as bait, Phillip lures Olivia into an electrifying affair that explodes into unbridled lessons of passion. Phillip never expects to become enamored with his ravishing pupil. But what begins as a rakish scheme soon becomes a genuine affair of the heart -- one that Phillip will protect at any cost...