In his second appearance to Aeneas in Aeneid 4 Mercury drives the hero to flee Carthage with a false allegation that Dido is planning an attack, capping his warning with an infamous sententia about the mutability of female emotion. Building on a previous suggestion that Mercury's first speech to Aeneas is modelled on Athena's admonishment of Telemachus at the opening of Odyssey 15, this article proposes that Mercury's second speech as well is modelled on Athena's warning, in which the goddess (...) uses misdirection about Penelope's intentions and a misogynistic gnōmē about the changeability of women's affections to spur Telemachus’ departure from Sparta. After setting out how Virgil divides his imitation of Athena's speech verbally and thematically between Mercury's two speeches, the discussion turns to why both Athena and Mercury adopt these deceptive tactics. The speeches are shown to be culminations of the poets’ similar approaches to creating doubt and foreboding around the queens’ famed capacities for using δόλος. Common features in the ensuing hasty departures of Telemachus and Aeneas further confirm Virgil's use of Odyssey 15 in devising Aeneas’ escape from Carthage. (shrink)