What should I read next?

I'm taking a train trip (soon), and I want to stock up on some fresh reading material (that is, something other than the classics I've got on standby). It has to be available as an ebook. I'd like it to be relatively recent (written this century). It must be engrossing, and easy enough to follow that when Helena announces that she's bored I can break away from the book to set her on some new tack and come back to it and know exactly who's who and what's what.

Should I choose:

• The Passage, by Justin Cronin
• The Unit, by Ninni Holmqvist
• The Thousand Autumns of Jacob de Zoet, by David Mitchell
• Kafka on the Shore, by Haruki Murakami
• The Imperfectionists, by Tom Rachman

Or something else entirely?