Sea of Tranquility

I wasn't planning on reading this right away, but a friend's review intrigued me so I found a challenge spot for it. I was hooked from the first page and devoured this in an evening. Very reminiscent of Cloud Atlas (which I also loved.) A pandemic is a factor, but it's not primarily a pandemic novel, it's a time-travel adventure with a huge heart. (Maybe what we imagined Loki was going to be?)