Lord of the Rings Online fans, we know you've all probably been quite busy adventuring through Isengard, but perhaps it's time you take a break. We've got just the thing for you to read while you relax, too. Light up some pipe-weed and have a seat as Turbine's Jeff Libby takes you on a tour of the design of Rise of Isengard's epic questline.

Libby expounds on the "T-Factor," or the Tolkien Factor, which governs the design of the game and the Epic Story in particular. In essence, the iconic characters and locations from Tolkien lore are said to have a higher T-Factor, and the devs aim for the Epic Story to have a particularly high T-Factor. The devs also introduced phasing with Rise of Isengard, which allows the environment to change based on players' actions. For the full, spiffy details on Rise of Isengard's Epic Story, head on over to the official dev diary.

We got the first details on the upcoming Lord of the Rings Online book, titled Oath of the Rangers, earlier this week. Now, to add to the excitement, Turbine has followed up on the initial information by releasing a handful of screens and an excellent developer's diary.

Flowing mightily from the keyboard of Jeff 'MadeOfLions' Libby, the diary gives Lord of the Rings Online fans much to discuss. Aside from the talk of storylines and a new skirmish, there's a really great behind-the-scenes portion about how precisely the LotRO team sets up something called "drama sequences." Essentially, these scripted sequences tailor NPC dialogue to you based on your own personal quest history -- bringing you info the story. There's also some information on ways the team is seeking to make travel a bit easier for the casual players, or more rewarding for those who take the long path.

If Middle-earth is the place you call home, then you'll definitely want to check out the new screens we've gathered up for you as well as the enlightening developer diary over on the LotRO site.