Complex sentence: The second novel, "A Million Suns", was released on 12 January 2012; the third, "Shades of Earth", on 15 January 2013.
Split into simpler sentences: The second novel is titled "A Million Suns" and was released 12 January 2012. The third and final installment, "Shades of Earth", was released on 15 January 2013.