On the advice of the Sibylline books, which were consulted amid anxieties surrounding the Second Punic War, Juventas was included in sacrifices in 218 BC relating to a lectisternium, a public banquet at which divine images were displayed as if the deities were participating. Like other deities whose cult was ordained by the Sibylline books, Juventas was venerated "ritu graeco", according to "Greek" rite. Also at the lectisternium of 218 BC, a supplication was performed at the Temple of Hercules. In Greek myth, the divinized Hercules had Hebe as his wife. The cultivation of both deities at the time of the Second Punic War seems intended to reinvigorate men of fighting age: Juventas "was regarded as a powerful divine force rendering a vital gift of strength at a critical moment." This occasion is also the first time the "Genius Publicus" ("Genius of the People") is recorded. After the disastrous Battle of Lake Trasimene in April 217 BC, Juventas, Hercules, and the Genius Publicus were excluded for a time from divine honors, as they were not felt to have been efficacious. Marcus Livius Salinator vowed a temple to her during the Battle of the Metaurus, when he faced Hasdrubal in 207 BC—an indication that Juventas was still felt to have potency.