I just finished the the last two books in the Lineage of Grace five-novella series, by Francine Rivers (they are short - readable in a day each if you have some free time like a plane flight! Now you can buy them all in one tome, see above link). Emily also read them all and liked them. The boys may try them, but since the stories all have a woman as the central character, they may be less applicable to them. I think they may still find them interesting. But if you wouldn't want your kids reading these ladies' very difficult and sometimes scandalous stories in the Bible, you wouldn't want them to read these books (i.e. they deal with such traumatic real-life subjects as prostitution, adultery, death, wife abuse, widowhood, poverty, and injustice - it's all in the Bible...). The great part is seeing the faith of these women, and especially God's incomprehensible grace and mercy extended to them, which He also longs to extend to the rest of us as we turn our faces to Him. The personalities, thoughts and emotions of these five women who are mentioned by name in the lineage of Jesus come to life in these pages.
I read them in this order (only Ruth/Bathsheba were out of place, should have been swapped), and loved them all. You can see my brief silly comments to myself after reading each:
Unveiled: Tamar "Good – adult story, but touching, interesting" (130pp)
Unashamed: Rahab "Excellent" (129pp)
Unspoken: Bathsheba "Excellent, so interesting. Such grace, God!" (175pp)
Unshaken: Ruth "Excellent! Wonderful! Wow!"(145pp)
Unafraid: Mary "Even wower! ;-) Made me cry hard. So fascinating." (173pp)