The Homecoming — Norah Lofts

Sybilla's husband was home from the wars--but he had brought his mistress with him. -- Sir Godfrey Tallboys had come home from the Crusades. Home to Knight's Acre. But the long years had brought many changes--and not only to his estate. His wife Sybilla, exhausted with struggling to keep poverty at bay, had grown old before her time. And with Godfrey's return, there was yet another change at Knight's Acre. With him was the Moorish slave girl who had saved his life in Spain...Tana, beautiful and beguiling, had been his mistress in those years away--and now she was expecting his child.

Aflame wiht all the jealous passions of the East, Tana was Sybilla as the obstacle to her desire. Her arrival was to alter the fortunes of the quiet Suffolk house. And in a way none of them could have possibly foreseen...