Waterlurker problems.

[flamez3]

You can just make him active when you enter the certain area. Make a ScriptArea around the whole place and in the use this: (replace names to what your names are)

void OnStart()
{
AddEntityCollideCallback("Player", "script", "monsteractive", false, 0);
}

void monsteractive(string &in asParent, string &in asChild, int alState)
{
SetEntityActive("monster", true);

}