And blame this.
Scorpibones
Because necromancers have to go to school like everybody else; and sometimes they get bored in the lab. Admittedly, you have to be very bored indeed to make what looks like a very badly-designed skeletal scorpion out of fish bones and a mouse skull, but that’s modern education for you. At least they’re doing something involving their field of study, right?
These particular critters are a lot less dangerous than they look; the only parts of one that can really move are the legs, the bones aren’t particularly robust, and your average Scorpibone is barely able to execute the commands “Move forward,” “Move back,” and “Wiggle.” They’re pretty much the occult version of a wind-up toy, in fact. On their own a Scorpibone will probably function for about six hours or so on a standard necromantic charge before it loses the magic; recharging one is typically considered to be more trouble than it’s worth.
Nonetheless, these things are useful. Necromancer-adventurers (yes, they exist. And no, they’re not all Evil-aligned) have discovered that Scorpibones can be tweaked to project a more powerful magical ‘presence’ than usual. Doing that burns out the Undead creature in about five minutes or so, but that’s usually long enough to send a Scorpibone down a corridor to see whether it sets off any magical sensors or traps…