Part 3: Investigating the Moathouse Ruins

@charles.c.crowley:
There is no Giant Frog in O-33, or any other "33" square on the grid, so I'm narrating the following under the assumption that you meant the frog in O-31.
Also, this is going to maybe seem a bit complicated, but it's not really... As Eltrezar is going to throw a dagger at #3 this turn, while at the same time 3# is hopping one step forward and biting at Coulson. Normally, #3 would be at 25' from the wazard and he would have another -1 to your attack roll for long range, but since 3# is moving to attack Coulson, it'll be at 20' (medium range) and there's no penalty or bonus for range.

Round 1 continues with Gilly up next, and turn order is as follows:
1. Coulson (7)
2. Angel, Smaller #2 (6)
--.3. Gilly, Eltrezar, Giant Frog, Smaller #3 (4)
4. Kelric, Alice, Elmo, Smaller #1 (3)

Good lord that was a fast response! What are you doing up at this hour?!?

Round 1 continues with turn order is as follows:
1. Coulson (7)
2. Angel, Smaller #2 (6)
3. Gilly, Eltrezar, Giant Frog, Smaller #3 (4)
-->4. Kelric, Alice, Elmo, Smaller #1 (3)

I don't know how I read that grid so wrong. I even make maps for a living! Looking back at it, I had intended to aim at P-32, crawling to get into the medium range. BUUUT I'm also very happy with killing whichever frog his dagger landed in.

I'm pretty amateur, so I'm probably doing it wrong. I usually put the alphabets along the top margin, and the numbers run along the left side on the page, but with Gilly way out in right field at the moment this map is so big that I'd have to zoom so far out you wouldn't be able to see anything at all an it was easier to put them below for now. As monsters and PCs gather closer together in closer quarters I'll zoom in more and the A-Z coordinates will probably be at the top of the maps I post more often.
I didn't see any targets in the 33 line of squares and only one target on the O line of squares so I thought that's what you meant.
*Sorry about that, frog #3...

Round 1 continues with turn order is as follows:
1. Coulson (7)
2. Angel, Smaller #2 (6)
3. Gilly, Eltrezar, Giant Frog, Smaller #3 (4)
-->4. Kelric, Alice, Elmo, Smaller #1 (3)

I'll wait for Kelric to take his turn and Elmo will go after.

First I'll update the map because it wasn't very current...

As you can see, Alice is currently standing on the Q33 square, and Coulson is on P33. The only remaining frog is the largest one on P32, and Elmo is going to ride his warhorse to O32 and attack the toad with his battleaxe.

Second, ranged weapons can't be used to attack enemies less than 5' away. Each square is 5', so basically you can't fire a missile weapon at any target in an adjacent square. Something to think about before moving your character.

Third, to answer your question, Strength modifiers never apply to missile attacks at all; only melee attacks, in which case they apply to both your To-Hit rolls and Damage rolls. Dexterity modifiers do apply to To-Hit rolls for bows and other missile attacks, but not to Damage rolls. Kelric has a "12" in Dexterity, so he doesn't have any Dexterity modifier to apply to bow attacks, BUT his long bow ranges are 70'/140'/210'. That's Short/Medium/Long ranges. If Kelric fires a bow at a target in short range he gets a +1 to his To-Hit roll. If he shoots at a target in long range he has a -1 penalty to his To-Hit roll. No modifier for medium range.

So I'll go ahead and leave that roll as it is, assuming you don't move Kelric further than 70' away from the frog. He rolled a "17" and you still get the +1 bonus, but it's for being in short range (again, assuming you don't move your token farther than 70'), for a total of "18". That does hit the frog, doing 2 damage. Just tell me where Kelric moved to before taking the shot and I'll move your token retroactively.

Round 1 ends with three of the four frogs killed, and only the largest one remaining Round 2 begins, and turn order is as follows:
-->1. Elmo (8)
2. Kelric, Eltrezar (5)
3. Angel, Coulson (4)
4. Gilly (3)
5. Giant Frog (1)

To be clear, if the southeast corner is Gilley's "way in" it's small. A halfling or maybe even dwarf could slip.through, but the rest would be left outside.