What can I tell you about it without giving away any of it? Let's see, you get a map of a small island (which appears to be missing an indication of scale / distance - not a game killer, but it would be nice) and some background material and a brief description of said island.
You get your usual (I love "usual" in this case) 6 possible plot hooks, each with 3 possible twists. It makes it very easy to tailor to your campaign and GM style.
You get descriptions of 4 NPCs that are very detailed yet stat-less. You know what drives them, but you'll need to stat them out to your system of choice.
Oh, and a random encounter table and a rumor table. A bargain and a half.
I'm really tempted to use these in conjunction with Christian's Hex Crawl series in Loviatar. Sandbox for the sandbox :)
From the blurb:
Out in the storm-lashed waters of the northwestern ocean is a small island not too far off the coast. Years ago the island was home to a monastery until the accident. After that night the monks fled the island never to return. Stories tell of a strange old hermit living on the island. Others speak of seeing camp fires in the night. What secrets does the hermit's Island hold?
Find out in Toys for the Sandbox #4 The Hermit’s Island