Mercedes Lackey

I'm only listing the first book in the series, though I did a fast re-read of all three as I was taking them out of a box and putting them on my shelf!

"Three enchanted stories set during the magical winter solstice." "Moontide" by Mercedes Lackey: In an isolated land where the lure of the "Moontide" leads to shipwrecks, a woman is torn between obeying her father or her king. When she chooses to follow a Fool, she discovers magic she'd never expected...at a price that might be too high.

Katya, the seventh daughter of the SeaKing, and Sasha, seventh son of the king of Belrus, meet and fall in love while she's on a spying expedition for her father and then she gets kidnapped by an evil Jinn and Sasha and his allies get together to rescue her and rebanish the Jinn, if possible.

From eHQ:

Blurb: Book 3 Mage Storms trilogy. The western allies, led by Karal, Karsite Sunpriest, have traveled deep into the Dorisha Plains to locate the ancient ruins of the Tower of Urtho, Mage of Silence, creator of the gryphons.

Blurb: Mage Storms book 2. Mysterious mage-storms are wreaking havoc on Valdemar, Karse, and all the kingdoms of the West,

Blurb: Book 1 Mage Storms. Karse and Valdemar have been enemies for generations, and their peoples are filled with prejudices and mistrust that may be impossible to overcome.

Princess Andi of Acadia must find a solution to soothing the dragon terrorizing her kingdom.  The solution is sacrificing virgins.  Suprising her own name is drawn.  A  Champion saves her from the dragon.  Then Andi and Sir George, the Champion, must find the dragon and solve the mystery. Lots of twists and turns. Loved it.

This is the next installment in the 500 Kingdoms series.  In this book, we get Alsakia, the snow queen.  She is actually the Fairy Godmother for the Northern reaches.  When word reaches her that another is impersonating her, she has to try and figure out what is going on.  At the same time,