The Eyes of the Overworld

Scoundrel Cugel is sent far away, by a magician he has wronged, to retrieve magical lenses that reveal the Overworld. Goaded by a homesick monster magically attached to his liver, he journeys across wastelands home to Almery. With a cult group on a pilgrimage, he crosses the Silver Desert, and meets more danger and betrayal as he betrays others.