Echo (An Alex Benedict Novel Book 5)

Sunset Tuttle spent a lifetime looking for alien species. Twenty-five years after Tuttle's death, Alex Benedict discovers a stone tablet inscribed with cryptic symbols, now in the possession of Tuttle's one- time lover Rachel Bannister. Benedict is determined to decipher its secret-one Bannister doesn't want revealed. Could it be that Tuttle's obsessive quest was successful? After 8000 years of star travel, humanity has found only one alien species. Alex Benedict may be on the path to finding another one, but an assassin has other ideas