“I didn’t say stronger,” Piper corrected. “I said he’s better.”
Piper pointed the mouth of the horn at Hercules. She let go of the resentment and doubt and anger she’d been harboring since Camp Jupiter. She concentrated on all the good things she’d shared with Jason Grace: soaring upward in the Grand Canyon, walking on the beach at Camp Half-Blood, holding hands at the sing-along and watching the stars, sitting by the strawberry fields together on lazy afternoons and listening to the satyrs play their pipes.
She thought about a future when the giants had been defeated, Gaea was asleep, and they would live happily together—no jealousy, no monsters left to battle. She filled her heart with those thoughts, and she felt the cornucopia grow warm.
The horn blasted forth a flood of food as powerful as Achelous’s river. A torrent of fresh fruit, baked goods, and smoked hams completely buried Hercules. Piper didn’t understand how all that stuff could fit through the entrance of the horn, but she thought the hams were especially appropriate.
When it had spewed out enough goodies to fill a house, the horn shut itself off. Piper heard Hercules shrieking and struggling somewhere underneath. Apparently even the strongest god in the world could be caught off guard when buried under fresh produce.
“Go!” she told Jason, who’d forgotten his part of the plan and was staring in amazement at the fruit pile. “Go!”

The Mark of Athena, Chapter XXVIII