I'm currently reading Log Horizon. I'm way behind on both this series and my mountain of books already purchased that need to be read.
Log Horizon, Vol. 3 - Light Novels
About this eBook
A message has reached the Round Table, and in response, Shiroe and his comrades leave Akiba on a quest to establish exchange with the Continental Alliance. Meanwhile, the summer training camp where rookie players from every guild will hone their skills begins. Minori and Touya (along with others at their level) face failure after failure as they challenge the dungeons. Without Shiroe to rely on, their abilities will now be tested!