13 Little Blue Envelopes

Ginny is given 13 blue envelopes by her dead aunts friend. Her aunt had died a while before this. The first envelope tells Ginny to pack some belongings in a back pack, and a ticket to London. In the letter, it gives Ginny a task, and tells her that she can't open the next one till she completes this task. The envelopes send her all around the world. This book, by Maureen Johnson, is a higher level book. I didn't enjoy it as much as I've enjoyed other books, but it was still okay.