book
| Series | S.F. MASTERWORKS #17 |
|---|---|
| Language | English |
| Author | Samuel R. Delany |
| Year | Orion, 2022 |
| First Published | 1965 |
| ISBN | 9780575101838 |
| Amazon ID | B004BDOJMC |
| Google Books ID | QsZMNVBGaKIC |
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Information was most recently updated Mon May 11 18:00:35 2026
In the far future, after human civilization has spread through the galaxy, communications begin to arrive in an apparently alien language.
They appear to threaten invasion, but in order to counter the threat, the messages must first be understood.