In these top-secret files, Rick Riordan, Camp Half-Blood's senior scribe, gives you an inside look at the world of demigods that NO regular human child is allowed to see.

These highly classified archives include three of Percy Jackson's most perilous adventures, a Spotter's Guide to Monsters, a Who's Who in Greek mythology, Percy's Summer Camp report and much more.

So, if you're armed with this book, you'll have everything you need to know to keep you alive in your training. Your own adventures have just begun . . .

Rick Riordan is the author of the New York Times #1 best-selling The Lost Hero, the first book in the Heroes of Olympus series. Kids across the country voted him Author of the Year for that book through the Children's Book Council in association with Every Child a Reader. Rick also penned the New York Times #1 best-selling Percy Jackson and the Olympians series: Book One: The Lightning Thief, Book Two: The Sea of Monsters, Book Three: The Titan's Curse, Book Four: The Battle of the Labyrinth and Book Five: The Last Olympian. The first two books in his Kane Chronicles, based on Egyptian mythology, The Red Pyramid and The Throne of Fire, were New York Times #1 best sellers as well. Rick lives in San Antonio, Texas, with his wife and two sons.