From the PDF introduction
An Adventure for Four to Six 10th-Level Characters
Secrets of Xen'drik opened up the unknown continent of Xen’drik, which we first read about in the Eberron Campaign Setting. While not every nook and cranny of the vast continent revealed itself in this relatively recent tome, more than enough information exists to allow for adventure and exploration. Xen’drik, an exciting place full of dangers and wondrous new cre a t u res and constructs, could become a home away from home for those jaded with the lands of Khorvaire or those seeking the unknown. Those so minded may wish to set sail by ship (dangerous) or airship (not as dangerous, but still not without risk) to Stormreach.
Jungle Secrets, an adventure for four to six 10th-level player characters (PCs), offers a window into the history of the giant-drow conflict and the remnants of the quori invasion. The adventure begins with the PCs already deep within the jungles of Xen’drik, and it takes them even farther into unexplored terrain. This adventure serves as a side trek to a main adventure, though it could be the start of a larger adventure or mini-campaign as well. Sidebars offer suggestions for modifying the adventure for 8th- and 12th-level PCs.