L^: c5, d5	-	R#: 3"	-	D^: 3-12 t + 1/level
C^: v.s.m	-	CT: 6s	-	S^: None
A^: 1" square per level,  1 spike per 1' sq.	-	-	-	-

Effect: The spike stones spell causes rock to shape
itself into long, sharp points which tend to blend into the background.
It is effective on both natural rock and worked stone.

The spike stones
serve to impede progress through an area or actually inflict damage.
If an AREA is carefully observed, each observer is 25% likely to notice
the sharp points of rock. Otherwise, those entering the area of effect
of the spell will suffer 1-4 points of damage from each spike stone that
hits, success of such attacks determined as if the caster of the spell
were actually engaging in combat. Those entering the area are subject
to attack immediately upon setting foot in the area and upon each
step taken therein afterward. The initial step will be sufficient to allow
the individual to become aware of some problem only if the initial attack
succeeds; otherwise movement will continue and the spike
stones will remain unnoticed until damage occurs. Charging or running
victims will suffer 2 attacks per 1 ” of movement rate over the
area of effect after initial damage is taken before being able to halt.
Others will suffer but 1 additional attack-like check. Those falling into
pits so affected by spike stones will suffer 6 such attack-like checks,
each made at + 2 probability “to hit” for each 10’ of distance fallen,
and + 2 on damage inflicted per 10’ distance fallen, spike damage
being in addition to falling damage.

MC: Four tiny stalactites. <link to image in the DSG>