This book is about indigenous religion of the Western Sami during the 17th and 18th century. It proposes a terminology for the places of sacrifice, argues that any interpretation of the figures on Sami drums must be based on the preserved explanations of the owners, presents a hypothesis concerning the interrelations and geographical distribution of the accounts written by missionaries, and gives examples of how terminologies, dialect geography, and place names can be used to supplement other sources. With references.