The Change Emberverse I Series by S.M. Stirling

The Change occurred when an electrical storm centered over the island of Nantucket produced a blinding white flash that rendered all electronic devices and fuels inoperable. What follows is the most terrible global catastrophe in the history of the human race-and a Dark Age more universal and complete than could possibly be imagined.

It's been eight years since the Change rendered technology inoperable across the globe. Rising from the ashes of the computer and industrial ages is a brave new world. Survivors have banded together in tribal communities, committed to rebuilding society. In Oregon's Willamette Valley, former pilot Michael Havel's Bearkillers are warriors of renown. Their closest ally, the mystical Clan Mackenzie, is led by Wiccan folksinger Juniper Mackenzie. Their leadership has saved countless lives... moreIt's been eight years since the Change rendered technology inoperable across the globe. Rising from the ashes of the computer and industrial ages is a brave new world. Survivors have banded together in tribal communities, committed to rebuilding society. In Oregon's Willamette Valley, former pilot Michael Havel's Bearkillers are warriors of renown. Their closest ally, the mystical Clan Mackenzie, is led by Wiccan folksinger Juniper Mackenzie. Their leadership has saved countless lives.But not every leader has altruistic aspirations. Norman Arminger, medieval scholar, rules the Protectorate. He has enslaved civilians, built an army, and spread his forces from Portland through most of western Washington State. Now he wants the Willamette Valley farmland, and he's willing to wage war to conquer it.And unknown to both factions is the imminent arrival of a ship from Tasmania bearing British soldiers... less

In the tenth year of The Change, the survivors in western Oregon have learned how to live in a world without technology-but there are those who would exploit the new world order. On one side stands Michael Havel's Bearkillers and their allies, Clan MacKenzie under the leadership of Juniper MacKenzie. On the other is the Lord Protector, Norman Arminger-the Warlord of Portland, whose neo-feudal empire rules over much of the Pacific Northwest... moreIn the tenth year of The Change, the survivors in western Oregon have learned how to live in a world without technology-but there are those who would exploit the new world order. On one side stands Michael Havel's Bearkillers and their allies, Clan MacKenzie under the leadership of Juniper MacKenzie. On the other is the Lord Protector, Norman Arminger-the Warlord of Portland, whose neo-feudal empire rules over much of the Pacific Northwest.The tensions between factions have been building for some time, and the only reason they haven't met on the battlefield is because Arminger's daughter has fallen into Clan MacKenzie's hands. But a plan to retrieve her threatens to plunge the entire region into open warfare. less