I have an underwater flash light, morr than one in fact. On the subject of horror I've crossed every oven in the world, most of the seas, scuba dived all over the world, and I have never once seen a giant squid, or massive Tokyo destroying lizard.
Your serial killer scenario is the first thing I thought of when I heard about these camp outs, but it still gave me a shiver to see someone had written it down.
I kind of feel cheated.