为防止森林火灾的发生，实习生李游被派去勘察一片原始森林。他先要考察一下树木和土质，然后坐直升机对森林进行全面勘测。
他被安排在老乡家住下。刚去的那天晚上，李游择床，半夜了仍翻来覆去无法入睡。突然，寂静的黑暗中传来沉厚而巨大的呜咽声。
第二天大清早，他就跑去问老乡有没有听到昨晚的那个怪声。没想到那老头听他一说脸色立刻变了，连声说没听到，还快步跑开了。
李游觉得事有蹊跷，再一次去考察森林时，他情不自禁地朝着怪声传来的方向走去。
穿过一片树林，李游的眼前豁然出现了一片水潭，奇怪的是，潭水发黑，而且他从未听说这里有个水潭。
他沿着水潭大致测量其周长，以便在地图上标注。这时他注意到水潭的中央有些异常。
那中央似乎是个泉眼，水汩汩地从中涌出，但不一会儿泉眼又凹陷下去，接着变成了一个巨大的旋涡。
“哞——”对面出现了一头牛，它慢慢靠近水潭，想要喝潭水。但是它刚低下头，就突然直直跌进了水潭里，接着被一股巨大的力量死死地拽住，往水潭深处拉去！
牛的惨叫声乍然响起却又戛然而止，它被卷入旋涡中。过了一会儿，潭水又吐出一个泉眼，只是涌出的水变成了红色。
李游吓坏了，他拦住一个放羊的老乡，惊魂未定地告诉了他刚刚看见的事情。那老乡听完惊恐万分，连连摆手，赶着羊群跑开了，并且尽量不让羊靠近水潭。
“村民们似乎都知道这水潭的怪异。”李游确定了自己的怀疑。
但他不死心，又围着黑水潭转悠，这时他突然发现水里缠绕着一些黑色的水藻。
“难怪潭水发黑呢！”他蹲下身，随手捞起一些黑水藻。
突然，水藻紧紧缠住了他的手，开始把他往水潭里拉！他当机立断，迅速拔出刀斩断了那缕水藻。
惊魂甫定，他看了看手中的半截藻类，突然惊叫起来。
这不是头发吗？
李游恍惚地回到了住处，第二天他坐直升机去勘测，路过那黑水潭的时候，他看清了水潭的全貌。
一张巨大的人脸铺满水潭，周围是黑浓浓的头发。
Introduce:To prevent the happening of silvan fire, trainee Li You is gone to by the clique reconnaissance a virgin forest. He should make an on-the-spot investigation first tree and earthy, sit next helicopter undertakes comprehensive survey to the forest. He is lived in to fall in fellow-townsman by arrangement. Just went that day in the evening, bed of Li You choose, in the middle of the night still cannot fall asleep again and again. Abrupt, transmit in silent night heavy thick and gigantic sob voice. The following day old early in the morning, he runs to ask fellow-townsman hears that strange voice last night. Did not think of that old man listens to him to say complexion changed immediately, say to was not heard repeatedly, returned half step to run away. Li You feels the thing has odd, when inspect a forest again, he blames way that transmits cannot refrain fromingly to go forward. Cross a woods, break appeared like that before Li You a swag, strange is, tanshui is nigrescent, and he never hears here has a pool. He measures its circumference roughly along swag, so that be tagged on the map. At this moment some are unusual in the center of he notices swag. A the mouth of spring is it seems that in the center of that, water gurgle ground flushs from which, bu