Dead Tree Vale (d20)

From the introduction:

An adventure for four player characters of any level...Contrary to popular rumor, the Vale is full of both plant and animal life, including many perfectly ordinary trees. However, scattered throughout the Vale, usually in clumps of two to four, but occasionally alone, stand hideous dead trees. The trees bear a passing resemblance to oak trees, save that their branches tend to be slightly fewer in number and most spread skyward rather than outward.