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.
Joint winner of the Nebula Award for best novel, 1966
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LibraryThing ReviewUser Review - dmsteyn - LibraryThing
Wow! Exhilarating stuff, this. Two books for the price of one, and both, in their diverging ways, brilliantly conceived. Both are, nominally, SF novels, but that hardly does them justice. They are ... Read full review
LibraryThing ReviewUser Review - HollyinNNV - LibraryThing
I did not find that this book captured my interest as much as I hoped it would. I did like the main character. In fact, I thought the characterization was strong. I think that the biggest annoyance ... Read full review