"When mysterious incidents start wreaking havoc throughout Camp Jupiter, suspicion falls on the Fourth Cohort's newest probatio. But is she really to blame? Find out the truth by delving into the pages of her personal journal"--

Demigod Percy Jackson, still with no memory, and his new friends from Camp Jupiter, Hazel and Frank, go on a quest to free Death, but their bigger task is to unite the Greek and Roman camps so that the Prophecy of Seven can be fulfilled.

"Cassiopeia, Queen of Ethiopia, often boasts about her own beauty. When Jupiter finds out that Cassiopeia thinks she's more beautiful than the sea nymphs, he's furious. Will Cassiopeia's words cause her kingdom to fall?"--P. [4] of cover.

Tells the mythological origin of the Roman goddess Venus, and discusses how she became a metaphor for sexual love.

Tells the mythological origin of the Roman god Pluto, and discusses his part in the war with the Titans, his rule over the underworld, and some of his other deeds.

"Callisto, a beautiful young huntress, is not looking for love. But Jupiter has been watching her, and he has a plan to make her fall in love with him. When Callisto has Jupiter's son, his wife is angry. Will Callisto and her son survive the wrath of Jupiter's jealous wife?"--P. [4] of cover.

Tells the different versions of the mythological origin of the Roman god Jupiter, and discusses his war against the Titans, his rule over the gods, the children he begat, and his deeds and adventures.

Tells the mythological origin of the Roman god Mars, and discusses his abilities and bloodthirsty temperament and some of his warlike deeds

"The seasoned staff at Vulcan's Celestial Supply Shop--a kid named Nico Bravo, a sphinx named Lula, and a unicorn named Buck--have got just the thing in their inventory of magical merchandise. Vulcan is on trial, accused by the evil Ahriman of breaking the Cosmic Rule--interfering in the plans of a fellow god! His only hope is finding five powerful artifacts scattered across the globe"--