The Lightning Thief

invited—”
    “Right, big surprise.” Sadie blew a strand of red-streaked hair out of her face. “Christmas Eve, and we’re going to see some moldy old relics from Egypt. Do you ever think about anything else?”
    Dad didn’t get mad. He never gets mad at Sadie. He just stared out the window at the darkening sky and the rain.
    “Yes,” he said quietly. “I do.”
    Whenever Dad got quiet like that and stared off into nowhere, I knew he was thinking about our mom. The last few months, it had been happening a lot. I’d walk into our hotel room and find him with his cell phone in his hands, Mom’s picture smiling up at him from the screen—her hair tucked under a headscarf, her blue eyes startlingly bright against the desert backdrop.
    Or we’d be at some dig site. I’d see Dad staring at the horizon, and I’d know he was remembering how he’d met her—two young scientists in the Valley of the Kings, on a dig to discover a lost tomb. Dad was an Egyptologist. Mom was an anthropologist looking for ancient DNA. He’d told me the story a thousand times.
    Our taxi snaked its way along the banks of the Thames. Just past Waterloo Bridge, my dad tensed.
    “Driver,” he said. “Stop here a moment.”
    The cabbie pulled over on the Victoria Embankment.
    “What is it, Dad?” I asked.
    He got out of the cab like he hadn’t heard me. When Sadie and I joined him on the sidewalk, he was staring up at Cleopatra’s Needle.
    In case you’ve never seen it: the Needle is an obelisk, not a needle, and it doesn’t have anything to do with Cleopatra. I guess the British just thought the name sounded cool when they brought it to London. It’s about seventy feet tall, which would’ve been really impressive back in Ancient Egypt, but on the Thames, with all the tall buildings around, it looks small and sad. You could drive right by it and not even realize you’d just passed something that was a thousand years older than the city of London.
    “God.” Sadie walked around in a frustrated circle. “Do we have to stop for every monument?”
    My dad stared at the top of the obelisk. “I had to see it again,” he murmured. “Where it happened...”
    A freezing wind blew off the river. I wanted to get back in the cab, but my dad was really starting to worry me. I’d never seen him so distracted.
    “What, Dad?” I asked. “What happened here?”
    “The last place I saw her.”
    Sadie stopped pacing. She scowled at me uncertainly, then back at Dad. “Hang on. Do you mean Mum?”
    Dad brushed Sadie’s hair behind her ear, and she was so surprised, she didn’t even push him away.
    I felt like the rain had frozen me solid. Mom’s death had always been a forbidden subject. I knew she’d died in an accident in London. I knew my grandparents blamed my dad. But no one would ever tell us the details. I’d given up asking my dad, partly because it made him so sad, partly because he absolutely refused to tell me anything. “When you’re older” was all he would say, which was the most frustrating response ever.
    “You’re telling us she died here,” I said. “At Cleopatra’s Needle? What happened?”
    He lowered his head.
    “Dad!” Sadie protested. “I go past this every day, and you mean to say—all this time—and I didn’t even know ?”
    “Do you still have your cat?” Dad asked her, which seemed like a really stupid question.
    “Of course I’ve still got the cat!” she said. “What does that have to do with anything?”
    “And your amulet?”
    Sadie’s hand went to her neck. When we were little, right before Sadie went to live with our grandparents, Dad had given us both Egyptian amulets. Mine was an Eye of Horus, which was a popular protection symbol in Ancient Egypt.

    In fact my dad says the modern pharmacist’s symbol, ℞, is a simplified version of the Eye of Horus, because medicine is supposed to protect you.
    Anyway, I always wore my amulet under my shirt, but I figured Sadie would’ve lost hers or thrown it away.
    To my surprise, she nodded. “’Course I have it, Dad, but don’t change the subject. Gran’s always going on about how you caused Mum’s death. That’s not true, is it?”
    We waited. For once, Sadie and I wanted exactly the same thing—the truth.
    “The night your mother died,” my father started, “here at the Needle—”
    A sudden flash illuminated the embankment. I turned, half blind, and just for a moment I glimpsed two figures: a tall pale man with a