So, destroy?" Cal asked. Clearly, the conversation was giving his two brain cells a serious workout. Author: Rick Riordan Copy Quote More from Rick Riordan “Hold up," Leo said. "You guys lost a dragon? A Real full size dragon?” “I turned to Thalia. ‘I’ll hold the flower while you beat up the thief?’She sigh…” “The entrance to the Underworld is in Los Angeles.” “lightning thief was good but the sea of monsters is better and has more action!”