Alex, Tina, Gaby, Lenni, and Jamal—they're good friends with one hot secret: Ghostwriter! Who tripped Alex and ran ahead to win the race? Who gave Lenni's dad phony Knicks tickets, and why is the scoreboard at Madison Square Garden flashing strange messages? Who stole a priceless stamp from the post office? Who is the mysterious artist who sculpted the big white statue that looks like a polar bear—but isn't? Haven't got a clue? Don't worry. With Ghostwriter on your side, you've got a partner against crime!