"Counting by 7's" by Holly Goldberg Sloan
I absolutely loved this quirky/ tragic/ beautiful/ happy/ unpredictable book. The characters are as unique as the story and Sloan had me hooked after the second chapter. It's a quick read with a powerful message that had me thinking and rethinking for days about the incalculable power of love and the human spirit.
(Oh, and missionary return countdown=fourteen day. Yep!!!)