A Girl with No Name (aka Toblethorpe Manor)

They called her Miss Fell for the spot where Richard Carstairs and his friend had found her on the snowy moor -- Daws Fell. He had carried her home in his arms to be cared for by his mother, Lady Annabel, and from the moment she opened her sea-green eyes in bewilderment and pain, she had captured his heart. But who was she? Christened Clara by Richard's younger sister, the girl was recovering her health but not her memory.

Also printed under the title "Toblethorpe Manor."