When the first alien communication signal reaches our solar system in the twenty-first century, Lissa leaves the safety of her artificial planet and joins those trying to decode the message.
- ISBN10 0060268875
- ISBN13 9780060268879
- Publish Date 1 January 1985
- Publish Status Out of Print
- Out of Print 7 July 2021
- Publish Country US
- Imprint HarperCollins Publishers
- Format Hardcover
- Language English