Do multiple castings of Death Knell stack?

[Mirrel the Marvelous]

Having just read Horsemen of the Apocalypse, I noticed a variant of Death Knell that could kill several individuals at once. If it did, would the casters bonus' stack? I suspect that the answer is no, at least for the hit points (temporary hit points are not supposed to stack) and the strength enhancement bonus (same type bonus' are not supposed to stack either. The bonus to caster level is untyped, and therefore potentially stackable, but a few slain enemies could give you an insanely high CL.

So my original question, do they stack?

[Sekret_One]

Looks like you the CL can stack as high as you want. Assuming this version of death knell is essentially Death Knell, Mass.

It's scary, but not too scary. The Higher CL won't increase DCs, and every damage spell I know of has a CL cap, (none higher than 20) and they're already pretty close to the max no?

The only big difference you see what with then getting huge CL is some spells will have a much longer duration, the ranges will be farther, and goodness will they pierce Spell Resistance and make concentration checks.

[Drejk]

It could be possible that temporary hit points from multiple kills will stack.

[Mirrel the Marvelous]

It's actually an aura/duration spell, anyone at negatives within the aura has to make a save. I don't have the book with me but it's not particularly high level (4th I think?) There's even a higher level version.

[Chris the Demon]

Sekret_One wrote:

Looks like you the CL can stack as high as you want. Assuming this version of death knell is essentially Death Knell, Mass.

It's scary, but not too scary. The Higher CL won't increase DCs, and every damage spell I know of has a CL cap, (none higher than 20) and they're already pretty close to the max no?

The only big difference you see what with then getting huge CL is some spells will have a much longer duration, the ranges will be farther, and goodness will they pierce Spell Resistance and make concentration checks.

There is one spell coupled with Death Knell aura would be particularly deadly. Finger of Death: This spell instantly delivers 10 points of damage per caster level. If the target's Fortitude saving throw succeeds, it instead takes 3d6 points of damage + 1 point per caster level. The subject might die from damage even if it succeeds on its saving throw.

[Byakko]

Ongoing effects from a spell don't stack with itself unless it specifically says so.

However, the creature could roll the 1d8 for the temp hit points each time, and keep the better of what it already had and the new roll.