Sea of Trolls Books in Order

The Sea of Trolls trilogy, The Sea of Trolls, The Land of the Silver Apples, and The Islands of the Blessed, mixes Viking history, Anglo-Saxon life, and Norse myth into one long adventure. The story begins in A.D. 793 with Jack, a Saxon boy who becomes apprentice to the Bard, also called Dragon Tongue. Jack is practical, curious, and often in over his head, which makes him a good guide through a world where monks, berserkers, trolls, and old gods all seem equally possible.

The first book starts when Viking raiders sweep in and carry off Jack and his younger sister, Lucy. From there the series opens into quests, bargains, rescues, and long dangerous journeys across sea and ice. Jack crosses paths with figures like Olaf One-Brow and the fierce young berserker Thorgil, and he gets pulled deeper into a mythic landscape full of trolls, dragons, shape-shifters, and powers that never come free.

It is funny more often than you might expect.

That matters, because these books can get dark. Farmer uses real fear and real loss, but she balances them with dry humor, odd creatures, sharp dialogue, and the everyday stubbornness of children who keep going. The series is also interested in culture clash. Jack's world sits between Christianity and the older gods, and the books never treat that tension as simple background. Belief shapes the danger, the politics, and even the magic.

In The Land of the Silver Apples, Jack's own growing powers cause trouble, Lucy is taken again, and the journey turns stranger and more underground. With Thorgil and later Pega beside him, Jack travels through a world of hobgoblins, kelpies, yarthkins, and elves that are much less gentle than fairy-tale versions. The middle book widens the series from a raid-and-rescue adventure into something larger, where whole ways of seeing the world are in conflict.

The Islands of the Blessed brings Jack, Thorgil, and the Bard into another quest, this time with storms, a draugr, the fin folk, and a trip toward Notland. By then the series has built real emotional history between its characters. Jack is still thoughtful and uncertain, but he has learned that courage is not the same as swagger, and that power without judgment can make everything worse.

What carries these books from beginning to end is Jack himself. He is not the biggest fighter in the room, and Farmer never pretends he is. He survives by paying attention, learning fast, and trying to do the decent thing when the decent thing is hard to spot. If you want fantasy with a strong sense of place, myth that still feels earthy, and a hero who grows book by book, this trilogy is a very good bet.