"I live in the sunlight of friends and the shadows of glaciers." Kim Heacox's coming-of-middle-age memoir. Born in Idaho's Bitterroot Mountains and raised in Spokane, Washington, Heacox moves to Alaska as a young park ranger and discovers a land and sea newly reborn from beneath a retreating glacier. "People are reborn here too," he writes. "This place is that powerful. In Glacier Bay you don't inherit, you create. You practice resurrection because the land and sea show you that anything is possible. Moose swim across fiords. Bears traverse glaciers. Flowers emerge from granite boulders. Inlets fill with glacial silt. Shorelines shift and nautical charts become obsolete as the land -- the actual crust of the Earth -- rebounds after the immense weight of glacial ice (of just a few hundred years ago) has been lifted."  (ALA230, $16.95)