Sonya is unassuming. In her own eyes, she is a mere mouse in the scheme of things. Yet time after time, century after century, generation after generation, she finds herself taking on fantastic roles--traveling to the galaxy's center, awakening humanity to the presence of her alien friends and then to the profound presence of whales, saving the galaxy from otherworldly intruders, orchestrating a much-needed truce between Earth and the Tau Centians, falling in love with a male Sagittarian and raising her bioengineered child, evolving into a desert messiah who takes an entire planet from the men, and finally at the end of time and the universe itself, journeying out into the multiverse and leading the Thirty Races into the infinite future.