She tied her blond hair back with a strip of denim torn from her pants leg, and in the fiery light of the river, her grey eyes flickered. Despite being beat-up, sooty, and dressed like a homeless person, she looked great to Percy.
     So what if they were in Tartarus? So what if they stood a slim chance of surviving? He was so glad that they were together, he had the ridiculous urge to smile.

Heroes of Olympus (3/5) ⟶ The Mark of Athena
“WE’RE STAYING TOGETHER,“ he promised. "YOU’RE NOT GETTING AWAY FROM ME. NEVER AGAIN.” 
Only then did she understand what would happen. A one-way trip. A very hard fall. 
"AS LONG AS WE’RE TOGETHER,“ she said. She heard Nico and Hazel still screaming for help. She saw the sunlight far, far above—maybe the last sunlight she would ever see. 
Then Percy let go of his tiny ledge, and TOGETHER, HOLDING HANDS, HE AND ANNABETH FELL INTO THE ENDLESS DARKNESS.