Listen, Summon Monster, Invisibility, The Girl, the Gold Watch & Everything

Zhure

First Post
Heh.

Here's the scenario:

Invisible Conjurer is using a full round Summon Monster Spell to continuously attack our hapless heroes.

What's the base Listen DC to locate his square? I know he gets a +1 to the DC for every 10 feet.

Greg
 

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This listen check will only pinpoint the area the caster is in he would still recieve the full benefit of 100% concealment. (50% miss chance).
 


People talking is DC 0.

However, is ther other fighting going on? Other background noise? To locate the specific square, I'd make pretty hard. Usually with listen you can tell approximate direction, but nothing specific.

THis goes into me as a DM, what I would do. THe DC would be 0 base but it would get some pretty good circumstance bonuses. As you've stated +1 DC per 10 feet away. If battle is going on, +5 DC (+10 if they are in melee combat). That would determine if they could hear him and get a vague direction, say a 90 degree arc. For every 2 they beat the DC by, I'd narrow the arc by 5 degrees.
 


You'll have to wing it on this one.

The rules give you a DC 0 +1 per 10' to hear normal converstaionl tone, which is what is required for the verbal componenet fo a spell.

A few suggestions:

First, you should only allow a more or less general direction if the noise is heard. You may want to allow spomething more if they are really close, like within 10' or so (of course, 50% miss chance always applies).

Second, apply a circumstance penalty based on the amount of other noise present (they are trying to notice a particular noise) of, say +2 per other noise, here, perhaps per non-silent combatant.

Basically, they'll probably get a direction fairly easily (a 10' lightning bolt should no nicely), but it's really hard to narrow down to a 5' square - in fact, I'd say they could either be really close or triangulate. Otherwise, no chance of an exact location.
 

Artoomis said:
Basically, they'll probably get a direction fairly easily (a 10' lightning bolt should no nicely), but it's really hard to narrow down to a 5' square - in fact, I'd say they could either be really close or triangulate. Otherwise, no chance of an exact location.

This is covered in the DMG, under the description of "Invisibility" (pg.78). You need to beat the DC to detect (DC 20 in this case) the creature by 20 in order to precisely pinpoint its location, hence the DC would be 40. You still have the 50% miss chance, however.
 

Isn't the base DC 0, thus to target the square would be DC 20 (+1 per 10 feet)?

Thus an invisible 10th level caster with a range of 50' on his Summon Monster used at maximum range have a DC of (0+ 5 for range + 20) 25 to pinpoint his square? Obviously, otherwise noisy conditions would elevate this number.

Greg
 

Zhure said:
Isn't the base DC 0, thus to target the square would be DC 20 (+1 per 10 feet)?

Thus an invisible 10th level caster with a range of 50' on his Summon Monster used at maximum range have a DC of (0+ 5 for range + 20) 25 to pinpoint his square? Obviously, otherwise noisy conditions would elevate this number.
You got it right. I think shilsen confused locating someone with Spot (which would indeed have a base DC of 40) with locating someone with Listen.
 

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