This is a fun, adventurous book about women who want more than the world wants to give them -- and what they are willing to do to achieve their goals. Although it's a sequel, you won't really miss anything if you haven't read the first book (and I liked this one a little better than its predecessor).
Book 2 of the Montague Siblings Series
Rose Under Fire by Elizabeth Wein
This is a sequel or companion to Code Name Verity, which I thought was an amazing book; this one is also very, very good. If you like historical fiction or books about the Holocaust and WWII, then this one is for you.
Companion to Code Name Verity
The Passion of Dolssa by Julie Berry
I wasn't sure what to expect with from this book, but I love, love, loved this story of courage, miracles, grit, and sisterhood. Berry recreates life in the 1200s in such vivid and meticulous detail that you'll feel the sea breeze and smell the bean stew. Just give it a try!
The Lie Tree by Francis Hardinge
This book is an interesting blend of historical fiction and fantasy, and it makes you think about how restricted women were not so very long ago.