Hopefully

Some time ago, I read Jeffrey Deaver's The Skin Collector. It features Lincoln Rhyme, a detective who happens to be a real stickler for grammar rules. As evidenced by this piece of text:

Basically I just learnt from this book that "hopefully" literally means "filled with hope". Never really thought about that before...

As for the storyline, it's pretty good. But somehow it's not as enjoyable as some other books are, I'm not sure why...maybe the writing style? And the characters aren't that likeable either.