Alex Benedict, tome 5
Jack McDevitt2010

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?

Titre original : Alex Benedict, book 5: Echo (2010)