"Anyone in particular?" Annabeth asked, her voice soft.

I looked over and saw that she was trying not to smile.

"You're laughing at me," I complained.

"I am not!"

"You are so not making this easy."

Then she laughed for real, and she put her hands around my neck. "I am never, ever going to make things easy for you, Seaweed Brain. Get used to it."

When she kissed me, I had the feeling my brain was melting right through my body.

I could've stayed that way forever, except a voice behind us growled, "Well, it's about time!"

Suddenly the pavilion was filled with torchlight and campers. Clarisse led the way as the eavesdroppers charged and hoisted us both onto their shoulders.

"Oh, come on!" I complained. "Is there no privacy?"

"The lovebirds need to cool off!" Clarisse said with glee.

"The canoe lake!" Connor Stoll shouted.

With a huge cheer, they carried us down the hill, but they kept us close enough to hold hands. Annabeth was laughing, and I couldn't help laughing too, even though my face was completely red.

We held hands right up to the moment they dumped us in the water.

Afterward, I had the last laugh. I made an air bubble at the bottom of the lake. Our friends kept waiting for us to come up, but hey—when you're the son of Poseidon, you don't have to hurry.

And it was pretty much the best underwater kiss of all time.

Camp went late that summer. It lasted two more weeks, right up to the start of a new school year, and I have to admit they were the best two weeks of my life.

Of course, Annabeth would kill me if I said anything different, but there was a lot of other great stuff going on too. Grover had taken over the satyr seekers and was sending them out across the world to find unclaimed half-bloods. So far, the gods had kept their promise. New demigods were popping up all over the place—not just in America, but in a lot of other countries as well.

"We can hardly keep up," Grover admitted one afternoon as we were taking a break at the canoe lake. "We're going to need a bigger travel budget, and I could use a hundred more satyrs."

"Yeah, but the satyrs you have are working super hard," I said. "I think they're scared of you."

Grover blushed. "That's silly. I'm not scary."

"You're a lord of the Wild, dude. The chosen one of Pan. A member of the Council of—"

"Stop it!" Grover protested. "You're as bad as Juniper. I think she wants me to run for president next."

He chewed on a tin can as we stared across the pond at the line of new cabins under construction. The U-shape would soon be a complete rectangle, and the demigods had really taken to the new task with gusto.

Nico had some undead builders working on the Hades cabin. Even though he was still the only kid in it, it was going to look pretty cool: solid obsidian walls with a skull over the door and torches that burned with green fire twenty-four hours a day. Next to that were the cabins of Iris, Nemesis, Hecate, and several others I didn't recognize. They kept adding new ones to the blueprints every day. It was going so well, Annabeth and Chiron were talking about adding an entirely new wing of cabins just so they could have enough room.

The Hermes cabin was a lot less crowded now, because most of the unclaimed kids had received signs from their godly parents. It happened almost every night, and every night more demigods straggled over the property line with the satyr guides, usually with some nasty monsters pursuing them, but almost all of them made it through.

"It's going to be a lot different next summer," I said. "Chiron's expecting we'll have twice as many campers."

"Yeah," Grover agreed, "but it'll be the same old place."

He sighed contentedly.

I watched as Tyson led a group of Cyclops builders. They were hoisting huge stones in place for the Hecate cabin, and I knew it was a delicate job. Each stone was engraved with magical writing, and if they dropped one, it would either explode or turn everyone within half a mile into a tree. I figured nobody but Grover would like that.

"I'll be traveling a lot," Grover warned, "between protecting nature and finding half-bloods. I may not see you as much."

"Won't change anything," I said. "You're still my best friend."

He grinned. "Except for Annabeth."

"That's different."

"Yeah," he agreed. "It sure is."

In the late afternoon, I was taking one last walk along the beach when a familiar voice said, "Good day for fishing."

My dad, Poseidon, was standing knee-deep in the surf, wearing his typical Bermuda shorts, beat-up cap, and a real subtle pink-and-green Tommy Bahama shirt. He had a deep-sea fishing rod in his hands, and when he cast it the line went way out—like halfway across Long Island Sound.

"Hey, Dad," I said. "What brings you here?"

He winked. "Never really got to talk in private on Olympus. I wanted to thank you."

"Thank me? You came to the rescue."

"Yes, and I got my palace destroyed in the process, but you know—palaces can be rebuilt. I've gotten so many thank-you cards from the other gods. Even Ares wrote one, though I think Hera forced him to. It's rather gratifying. So, thank you. I suppose even the gods can learn new tricks."

The Sound began to boil. At the end of my dad's line, a huge green sea serpent erupted from the water. It thrashed and fought, but Poseidon just sighed. Holding his fishing pole with one hand, he whipped out his knife and cut the line. The monster sank below the surface.

"Not eating size," he complained. "I have to release the little ones or the game wardens will be all over me."

"Little ones?"

He grinned. "You're doing well with those new cabins, by the way. I suppose this means I can claim all those other sons and daughters of mine and send you some siblings next summer."

"Ha-ha."

Poseidon reeled in his empty line.

I shifted my feet. "Um, you were kidding, right?"

Poseidon gave me one of his inside-joke winks, and I still didn't know whether he was serious or not. "I'll see you soon, Percy. And remember, know which fish are big enough to land, eh?"

With that he dissolved in the sea breeze, leaving a fishing pole lying in the sand.

That evening was the last night of camp—the bead ceremony. The Hephaestus cabin had designed the bead this year. It showed the Empire State Building, and etched in tiny Greek letters, spiraling around the image, were the names of all the heroes who had died defending Olympus. There were too many names, but I was proud to wear the bead. I put it on my camp necklace—four beads now. I felt like an old-timer. I thought about the first campfire I'd ever attended, back when I was twelve, and how I'd felt so at home. That at least hadn't changed.

"Never forget this summer!" Chiron told us. He had healed remarkably well, but he still trotted in front of the fire with a slight limp. "We have discovered bravery and friendship and courage this summer. We have upheld the honor of the camp."

He smiled at me, and everybody cheered. As I looked at the fire, I saw a little girl in a brown dress tending the flames. She winked at me with red glowing eyes. No one else seemed to notice her, but I realized maybe she preferred it that way.

"And now," Chiron said, "early to bed! Remember, you must vacate your cabins by noon tomorrow unless you've made arrangements to stay the year with us. The cleaning harpies will eat any stragglers, and I'd hate to end the summer on a sour note!"

The next morning, Annabeth and I stood at the top of Half-Blood Hill. We watched the buses and vans pull away, taking most of the campers back to the real world. A few old-timers would be staying behind, and a few of the newcomers, but I was heading back to Goode High School for my sophomore year—the first time in my life I'd ever done two years at the same school.