Shortswords, no armor, and travellers clothes, also small packs.

"time to feed you..."  Asutali murmurs softly to her whip as she pulls it out.  she will move so her horse is within 10 feet of the three, then lash one of the three travelers with her whip, then have the stone horse use its slow affect.  I suppose we should do initiative as well...  As she attacks she becomes visible, but I assume the attacks are with advantage, as she was unseen until she struck.

Initiative: 1

Lash of shadows attack: 13 / 7

Damage: 10

If it hits she will have it use the below poison. DC to resist is 15.

Serpent Venom. A creature that fails the saving throw against this poison takes 11 poison damage, or half as much damage on a successful save.

Slow (Recharge 5–6). The golem targets one or more creatures it can see within 10 feet of it. Each target must make a DC 17 Wisdom saving throw against this magic. On a failed save, a target can't use reactions, its speed is halved, and it can't make more than one attack on its turn. In addition, the target can take either an action or a bonus action on its turn, not both. These effects last for 1 minute. A target can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success.

Initiative 5

Saving Throw against poison 7 17 12

Wisdom Checks: 1 5 11

One takes half damage from the poison.

They fail the wisdom checks, and one of the travellers is totally stopped.

2 of them are killed, and the 3rd is wounded and moving at half speed.

Brick initiative: 8

On his turn, Brick will retrieve his fire catapult and launch one at the remaining person.

Attack: 8 Damage: 3

you miss.

Chilton draws his sword and slashes at the remaining man.

Attack: 20 Damage: 9

initiative 16

you miss, and chip your sword on a rock.

As soon as Brick misses, he will put another small rock in the catapult, pour a little oil over it, then light it with fire.

((This is him preparing to cast Fire Bolt again on his next turn.))

OK

initiative 15 

spear 12 

damage 3 

The 3rd one is killed. DragonDenn gets 50XP, and Legion4 gets 25XP, There are 30gp belonging to the people, divide it up among yourselves, 3 sets of traveler's clothes, and 3 nonmagical shortswords, 3 days rations and 2 waterskins

Sasna stands back and lets them fight the peasants. Not feeling the need to burden herself with the effort of combat against this bunch. 

She will simply have watched it. 

Asutali takes 20 gold, two short swords, and one of the water skins. She then remounts her stone horse, activates the ring of invisibility on it, and starts down the road once more.  The whip at her belt can almost be heard purring as they head on down the road.

Otikul takes the water skin a shortsword and 10gp and follow them down 

The rest of the day is uneventful, you consume 1 ration, and sleep. On the next day you are awoken by thunder and lightning, and the road is slightly washed out, you will have to find a detour.

Asutali consider back, trying to recall if there were any other paths or roads they passed up to now.  Passive perception is 13.  She would not have been actively looking for those things so passive should be what applies.

She scans the area directly around them, trying to see if there is another way forward.  Active perception for this:  16

A mile back, there was a small trail, you don't know where it goes, or you can continue on foot through the washed out trail, but there may be quicksand, and any animals may get lost or stuck.

"A trail wass back thiss way..."  Asutali's voice issues from her spot atop the invisible stone horse.  She turns the mount around and heads back towards the trail she spotted earlier.

"You guyss coming?"  Asultali calls to the others, a bit of impatience in her tone now.