This is a different version ending for the Blood of Olympus, all set in Percy's POV. I own nothing, all rights go to Rick Riordan that luck guy :)
It was a rainy day, when it all began, the beginning of the end. Well the end to my own personal world. I was sleeping at the time, exhausted from running around killing monsters. The Giants had killed Jason and Piper to awaken Gaia. Jason and Piper were holding each other as they died, proclaiming their love for the other as the light faded from their eyes. After Gaia and her Giants vanquished the Gods, the monsters wreaked havoc on Camp Half-Blood and Camp Jupiter, who were already few in numbers after attacking one another. The Mist starting failing and the Mortals starting to see the monsters that lurked in the shadows. Screams and chaos soon followed, their mortal weapons useless against these creatures. The demigods that survived all this went in hiding, myself included. We found a stronghold that felt so safe and we continued our lives there. Annabeth, Nico, Katie, Travis and Connor Stoll and Frank. Leo died when he went off and tried to save Calypso, but it was a trap and he soon perished. Hazel died when we were ambushed not long after that, we were looking for Leo when we found his body. It was awful, he was hanging from a tree with a sign saying "No Demigods Are Safe. You're Next". His face was frozen in terror, bloodied and torn apart. We were trying to cut down his body when I heard a horrible scream. Uncapping Riptide, I whirled around to find a spear embedded in Hazel's stomach. We tried to fight back but we were soon overwhelmed and escaped just in time, Nico shadow traveling us back to our last hide out. We soon moved out and we found our latest refuge. That safety that we felt, that normalcy, soon came to an end. A gory, tragic end. Monsters from all sides stormed in, screeching war cries as they proceeded to dispatch of any demigods close to them. Nico and I only survived because they were to busy killing our friends. I still sob at night, seeing my girlfriend and my cherished friends die one by one in the most horrifying ways. Nico soon wasted away, faded away after using too much shadow travel. He disappeared in my arms, forever from my life. I had no comfort, I am not sure if there is an Underworld anymore, after all Hades was assassinated like the rest of the Gods. Death is only the beginning, that was what I was told when I first came to Camp Half-Blood. After all there was Elysium for the heroes, the Asphodel Fields for the ordinary and indifferent souls who did not commit any significant crimes and then there was the Fields of Punishment for those who created havoc on the world and committed crimes specifically against the gods. Did they still exist? Did Annabeth, Piper, Leo, Nico, Jason, Frank, Hazel, Reyna and countless of others reside there? Or did they rot in Tarturaus? I had no way of knowing, no comfort at all. Thats why when they came for me, I barely put up a fight. As they ripped and shredded me in half, I couldn't help thinking that this wasn't the end. After all death is only the beginning.