The celebration of Naughty Dog's 30th anniversary is continuing into October with the release of The Art of Naughty Dog, a collaboration with Dark Horse celebrating the studio's historic run. The book will also include concept art for the upcoming Uncharted 4: A Thief's End, and one astute fan took some (low-res) pictures of those pages and posted them to Tumblr for all to see.

It looks like things won't get any easier for Drake in this new adventure, with the concept art showing a beach in the middle of a major rainstorm and a city partially submerged into the ocean. One of the shots shows Drake approaching a building in a boat on the water, meaning that maybe we'll be able to control some vehicles in this new game.

We expected to see some jungle-like areas after the E3 2014 trailer aired, but that sunken city is rather interesting. We're thinking that will be one of the first main locations in the game, setting up the rest of the adventure for us by finding some kind of clue in the underwater ruins. Take a look at some of the art below, and take your best guess as to what's going to happen.

Uncharted 4: A Thief's End is due in 2015 for PlayStation 4.

misstalwyn/Naughty Dog
misstalwyn/Naughty Dog
misstalwyn/Naughty Dog