10 Books You Should Read After To All the Boys I've Loved Before

In 13 Little Blue Envelopes by Maureen Johnson, Ginny Blackstone receives a letter from her recently deceased aunt, containing $1,000 and a set of instructions. Ginny is sent on an adventure backpacking across Europe, collecting clues that lead her to each new envelope and learning more about her aunt (and herself) than she could have ever imagined.