They sped by a pack of sea lions lounging on the docks, and she swore she saw an old homeless guy sitting among them. From across the water the old man pointed a bony finger at Percy and mouthed something like 'Don't even think about it.'"Did you see that?" Hazel asked. Percy's face was red in the sunset. "Yeah. I've been here before. I...I don't know. I think I was looking for my girlfriend.""Annabeth," Frank said. "You mean, on your way to Camp Jupiter?"Percy frowned. "No. Before that.
Rick Riordan, The Son of Neptune
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