He he he!!!  I lied to you!  There's nothing to be scared of in Blackmask's house.
ANYWAY, HAPPY HALLOWEEN! 
  Well, here is just a horror movie character's survival guide:
*  When it appears that you have killed the monster, NEVER check to see if it's really dead
*  If you find that your house is built upon or near a cemetary, was once a church that was used for black masses, and previous inhabitants who went mad or committed suicide or died in some horrible fashion, move away IMMEDIATELY
NEVER  read a book of demon-summoning aloud, even as a joke
DO NOT search the basement, expecially if the power has just gone out
*  If your children speak to you in Latin or any other language which they do not know, or if they speak to you using a voice which is other than their own, shoot them immediately.  It will save you a lot of grief in the long run.   NOTE: It will probably take several rounds to kill them, so be prepared.
*  As a general rule, DON'T solve puzzle that open portals to HELL
NEVER stand in, on, above, below, beside, or anywhere near a grave, tomn, crypt, or other house of the dead
*  If you are searching for something which caused a noise and find out that it's just the cat, leave the room RIGHT AWAY  if you value your life
*  If appliances start operating by themselves, MOVE OUT!
DO NOT take anything from the dead
*  If you find a town which looks deserted, it's probably for a reason. Take the hint and STAY AWAY
*  Don't fool with recombinant DNA technology unless you are sure you know what you are doing
*  If you are running from the moster, EXPECT  to trip or fall down at least twice, more if you are of the female persuasion.  Also note that despite the fact that you are running and the monster is merely shambling along, it's still moving and fast enough to catch up with you
*  If your companions suddenly begin to exhibit uncharacteristic behavior such as hissing, fascination for blood, glowing eyes, increasing hairiness, and so on, GET AWAY from them as fast as possible
*  If your car runs out of gas at night, DO NOT go to the nearby deserted-looking house to phone for help
BEWARE  of strangers bearing tools such as chansaws, staple guns, hedge trimmer, electric carving knives, combines, lawnmowers, butane torches, soldering irons, band saws, or any device made from deceased companions
LISTEN CLOSELY TO THE SOUNDTRACK . . . IT WILL HELP YOU KNOW WHEN YOU ARE IN DANGER!