Found it...

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I just got finished reading The 39 Clues: The Maze of Bones, Book One in the 39 Clues series. I wanted to read Book Two next (for the GoodReads challenge), as I knew I'd bought it, but couldn't figure out where I'd put it. The other day it popped up, thought I can't remember exactly where. I was planning on starting another book on my pile and read it while I was waiting to find this book, but it turned up before I could start one of the other books, so this one will come next. I'm curious to see how it will be, as evidently a different author writes every book in the series? That strikes me as weird, since it's all the same characters, but... I'll see how it goes.