Aid Another Or Your Own Check

I had to re-read your post, I thought Kaspar was going up for the water.

You have two choices. Kaspar can try to put the flames out now himself, or he can use the aid another action to give Castille a +2 on Castille's next check. You already fumbled your water with that natural 1 roll.

To put yourself out is a Reflex save DC 15. To put someone else out is a Dex check, not a save. The check should be DC 15, but you don't care about saving the kboold's life (he's dead anyway), you just want to save the evidence. That lowers the DC to 10, 8 if you have something to smother it with like a wet cloak.

So, your choices are:

1) Kaspar attempts to put out the fire himself, which will require a Dex check DC 10.

2) Kaspar attempts to yank the wet blanket out of Castille's hand, which will require a successful touch attack on Castille, and then Kaspar has a Dex check DC 8.

3) Kaspar does the aid another action, giving Castille an additional +2, so that the Half-elf has a Dex DC of 6.

The only problem with #3 is that you don't want the best evidence (the fingers) to shrivel from the heat. If you choose #3 I will make a percentile roll, 25% or less the fingers on the kobold's necklace are shriveled.

Let me know what you choose.