Saunders offers an original take on Grail lore as well as an imaginative and lively weaving together of two complex times, characters, and places separated by centuries but joined by one common source and concern. Her characters are well developed and rich, especially her reimagining of 13th century Philippa Pereille of Mirepoix and 20th century Otto Rahn of Germany, two historic people truly caught between a rock and a hard place who did their best with what their times, wits, and circumstances allowed. Readers who love historic fiction, mystery, and esoteric lore will greatly enjoy Wellspring.