Book Club - The Expanded Earth

Note: Please see comments for book links (maybe)

Humankind has been reduced to the height of a handspan.

Many do not survive the sudden transformation.
This is the story of those who do.

Frightened and awed in his new body, Giles embarks on a quest across a wildly altered landscape in search of his loved ones, hoping that for all its perils, this new world might offer a chance of redemption.

Elsewhere, deep in the ocean, the spectre of an ancient godlike force stirs, and catastrophe inches closer and closer still.

Welcome to the micropocalypse. Welcome to The Expanded Earth.