Cris stepped out of the portal, and came to a stop. He looked around, and then blessed Artemis, the great huntress, showed him their location by the light of the moon. Myall followed, and watched Bill bring Aleina in.
Aphrodite's works were crafty, but Bill's execution left much to be desired. Thus, Aleina left the room to set up a bed.
Myall swore to Zeus's daughter the keeper of wisdom that this silly behavior from Bill Weasley would not stand. Cris agreed, adding an invocation to Hera that the Weasley family would not be swayed by such things.
Unfortunately, Dionysus, the reveler, had seemingly received an invocation from the beast which the two travellers called a "Mary Sue": Mrs. Weasley was frantically at work to prepare the house against the guests. Aliena, Charlie, Bill, and Mr. Weasley almost lost their legs at breakfast as a broom zoomed underneath the table.
The flying broom then attacked Cris and Myall, guided by the War-God's hands. However, the gods did not forget them, least of all Athena, the wise one, who came down to the earth and deflected the course of the wild broom, guiding it gently as dearest Aphrodite would guide a lover to her chamber. The broom snapped upon impact, and with a parting blessing she left just as Charlie hatched a plan to make it out before his mother had enlisted their help to scrub the house.
This affront against Zeus's steadfast wife was not taken lightly, however, and with a small whisper of the wind made Molly Weasley catch them. Cris, the warrior son of a common man, watched as everyone was made to scrub every dish clean. Pleased with herself, the mother of Ares left to watch her work.
Further was she pleased when Hermoine arrived, and the group watched as the twins were forced to scrub some more after attempting to sneak out for a small snack. Apollo, the poet, however, took issue with the fact that such focus on familial squabbles seemed to notice how this delayed the narrative, and so it placed a time skip.
This in turn angered the one who had blessed the two agents, who flew down next to the Wolf-god and began arguing with him. Ares, whose broom was blocked by the queen of fighters, came down and argued with Athena. This brought on the wrath of the goddess of love, and before long, every Olympian was in the room, arguing over who was right in the situation.
It was at this moment that Cris and Myall both agreed that they would never, ever leave an invocation to Athena again as long as they lived. And so, they stumbled over to Percy's room, where they watched as Percy researched cauldron bottom-thickness such that he blissfully ignored the Olympian brawl that had begun below. And so it was that they allowed the captain of the skies to intervene, breaking up the fight. Zeus reminded them that the beast known as the "Mary Sue" was to be slain at all costs, but this did not sway them. And so, he persuaded them to return to Olympus to finish their dispute, and every one of the heavenly beings returned to their home to finish the argument.
Cris and Myall, warriors of the PPC, wished they would never see these Olympian gods again, and made their way downstairs after the next time skip to see everyone except for Ron and Arthur Weasley sitting around the table, the goblets filled with wine that smelled of the sweetest grapes.
I'm not absolutely positive what Greek myth as a genre is (maybe TungstenMonk can clarify), but this doesn't really seem like it. Greek mythology as a style of story-telling is more about the events... more