8 brothers, 4 sets of twins, magic born, a prophecy of each's love and of doom and problem... exiled to Nightfall Isle to protect the rest (the prophecy didn't seem that bad to me, I'm not sure why such extreme measures). Kelly, of our universe, is transported to their world by youngest, strongest mage when her life is threatened & she and oldest twin Saber are now married, she is queen of the island, declaring it its own sovereign nation - and organizing the brothers to chores, to maintaining the castle, to cultivate the island's offerings, and to paint the walls with magic paint that changes colors and scenes, thus making it impossible for Broger to send beasts to try and kill them. Brother #3 has been kidnapped by women hating clan who is at war with a man hating clan... and apparently his destiny is to find a woman there.
and to 2nd book - Alys grew up visiting the brothers - younger, shy, she learns to be brave with them... she has a special connection with Wolfer, who made her laugh after scraping her knee, when she was 3 and he was 8... and when her parents died and she came under her uncle's care - she gave him a braided lenghth of hair, with a bit of silk, weaved into a bracelet he wears ... and it helps him find a calm center when he is angry... (thus fulfilling his part of the prophecy with her).
and for the 3 years that the brothers lived on the island, she lived under her evil uncle's home - he beat her, he used her to care and feed his menagerie of predator magicborn animals - and she quickly found that impassive tolerance of him kept him out of her hair - and she continues to 'meet' with youngest twin Morganen to learn bits of magic, to create a charm that will block the spells her uncle has spun over her to draw her magic, to find her, to control her, and to plan on how escape him...
and the time comes when he has sold her to a nasty old man in marriage - and the 3rd day on the trip to him, she creates some wartdogs to 'carry' her away in front of the guards, and then uses thependant to block her uncle finding her. she makes it to a town by the ocean, accidently spends time with a kind whore, who tells her all about sex - her body and a man's body, and what they do together - and she shifts to an otter, and makes it to the island.
and Wolf finds her, and recognizes her... and their love catches up with thim - and he initiates her into sex - and she is an interesting blend of innocence and knowledge. He quickly overcomes his shocked anger when she confesses to having assisted her uncle in caring for the creatures that tormented them for 3 years... They have a nice relationship -
and their 'country' advances - in plans, and organization... expanding their exports... and uncle shows up annihilate them (sacrificing his own brother) - but they a) have determined that if they reflect a mortal spell he zaps out, it will bypass his magical shield protections and b) Morganen figures out that they have to return him to the hell gate he created when he zaps, to send him into the hell... and it works... though one brother looses his voice.