In the last story arc of the game, the characters awoke, stripped of their belongings, in the plains of Hades. They had uncovered a plot in which Hades, bereft of children, had decided to kidnap all of the sons of the gods and keep them prisoner in the Underworld forever.
Hades had corralled all of the demigods and was serving them drinks from the river Lethe. Once some one had drunk from the river their memory was wiped completely. Those who indulged in the drink were led to the Asphodel Fields.
The players traveled the Underworld, with the help of their undead satyr guide Nigel. They passed through the gates of the dead at the entrance to the Underworld and met the Judge of the dead, Minos. With quick thinking, and a little help from a birthright, they were able to convince him to let them pass.
The travelers then found themselves upon a path. Nigel informed them that the path would take them to Hades palace, and to not step off of the path or they would be lost forever. The group agreed and traveled onward.
Suddenly a figure appeared on the path. The god Hades, with a smoky visage, b locked their way. He warned them that they would never escape, and where they to continue with their quest then he would send the armies of the dead after them.
The heroes, harrowed by the phantom god, decided to try another way of escape. They would try to convince Charon, the ferryman of the river Styx, to let them pass. They traveled down to the river Styx, avoiding Cerberus.
Charon refused to ferry them across with out payment, and unfortunately they found all of their money missing. Sato, ever scheming, concocted a plan to steal from Charon’s storehouse. Trenton, son of Poseidon, scouted the river, and found the entrance to Charon’s horde.
The brave group, including Nigel, swam down to the cave of Charon’s holdings, and found themselves at the entrance to a maze. Using quick thinking, and channeling the dead Theseus, they traversed the maze without trouble.
They found themselves in a treasure trove. Silver from every time was piled in the room. They quelled their greed, and took only a few pieces to pay the ferryman. Realizing that the pieces would be recognized, they melted them down and reformed them. Retracing their steps, they returned to the banks of the Styx.
When they presented the silver to Charon, they were met with his scorn. He told them that they “Could not pay him with which he already earned.” They were downtrodden, but knew it was useless to fight the Charon, even the greatest heroes feared him.
Another plan was brought to the group, they would find Persephone, and she would free them from the Underworld. The only problem was that Persephone had not been seen in weeks. Intrepid Nigel was sent to find her, as he used to be her personal servant.
He returned to the group with a note. Persephone was being held captive in the palace, and asked for help. The group set out to save the Queen of the dead, hoping that once freed she would help them.
They traveled to the palace of Hades, and snuck in using the servant’s entrance. They were found out, and Sato was the only one to evade capture. They were taken, and thrown into the dungeon where they found Persephone. They noticed that she was covered in bruises. Barring the entrance door, they began to free Persephone.
She was reluctant to escape. She told them that the man they had met on the path was not her husband. Her husband had been absent for some time, and an imposter was in his place. If she escaped without the imposter being taken care of, she would just be captured and punished. She told them that she would aid them, but they must find her husband and reinstate him.
The group escaped, after a heated battle with the palace guards, into a tunnel at the back of Persephone’s cell. They were determined to find the real Hades, get him back in power, and escape the Underworld. As a parting word, Persephone told the group that they would know her husband by his goblet, something that had gone missing with him.
A memory was sparked, an old man working the fields of forgetfulness asking about his son. On his belt hung a goblet, sparkling, seeming out of place among the rags he wore. A plan was hatched as they walked in the tunnel.
It was not going to be as easy as they thought though; the imposter had gotten wind of his unmasking. A race was run from the tunnel mouth to the bridge over the Lethe, with the heroes trying to outrun an army of the dead. Austin flew over and grabbed the true Hades while the rest of the group fought wave after wave of the dead.
Once the true god was found, Trenton drained the waters of the Lethe from him. With the god restored, the fighting ceased and the devious plan was shown. Hades’ only son, Praxus, angry at the fact of his own sterility, planned to capture all of the sons of the gods. He then planned to blame his father and incite a new war between the gods.
The Underworld is now in chaos, with many questions still unanswered: How had Praxus gained enough power to dethrone his father? How had he captured all of the demigods? How will all escape the Underworld intact (for Hades had told them to find their own way)?
As that end of the story closed, Hades offered a way out, a cave at the edge of Tartarus. There is just one problem, Typhon has escaped.