In a prior installment I showcased a UK paperback novel on which Caroline appeared. This time out, she's featured on the dust jacket for James Hadley Chase's novel believe this... you'll believe anything, published by Robert Hale & Company in London in 1975.
From the inside jacket flap:
Out of the past comes a woman Clay Burden had loved and idolized. Believing she was lost to him, he has married. He finds she too has married. To him the situation presents no problem: a double divorce and the problem is solved. It doesn't work out like that. There are many complications which include hypnotism and murder.