1 - The missing villagers of Tar

After everyone is done cleaning their mess kit, Malchuck sits and tries to enjoy the night sky while keeping watch. It's only been an hours since the sun set, and your group isn't even done unrolling their bedrolls when the watchkeeper notices that something's going on: first he spots a mountain rabbit hopping away in a hurry ; then he hears a stone rolling, and probably tells his companions to stay alert. Unlike rabbits, stones do not roll on their own. Something is approaching, searching. Several creatures.
The place you chose for the night has the advantage to be difficult to see from afar, providing a well needed concealment in these hostile lands, but that setup makes also puts you in an unfavorable position to face incoming enemies.
You know they are not wild beast because they speak some kind of horrible, dark language. Something that you, the deep gnome, did not think you'd hear on the surface: Undercommon. They are nearby, within 90 feet, probably searching. You don't know for sure if they are aware of your presence, but you are not able to see them yet.

What do you do?

Well the fact that they use Undercommon give you a basic idea of they nature, as it is very improbable that surface folk communicate in such language. But their accent and usage make you think that they probably are from the Menzoberranzan. You'll probably learn more about them if you get a chance to see them...

Vachel kicks some earth on the burning embers to hide the light from the incoming creatures as everyone takes position for the upcoming battle. Hiding in the bushes and behind tree, each one draws his weapons of choice and stands ready to hit.
As far as you can tell, there are three groups searching the area.

Cryst and Malchuck are the first to spot them due to their superior darkvision but, even if he doesn't see as many details as his comrades, Vachel is faster to react.
And this is the creature you see coming : an insectoid looking shape, aggressive looking with glowing eyes and dangerously pointy claws.

Hunkered down in the bush, Vachel scans the area for threats while awaiting Malchuck's intel. He slips off his bow and nocks an arrow. Then he hears it: undercommon. He had thought it strange when Avery had him study such an obscure language. He can't quite make out any words yet. Could it mean Drow attackers?

Out of the edges of the darkness he sees them - rancid, spidery things with eyes that glowed in the night. Vachel uses the glow as a target as he releases the first of his arrows.

Vachel readies an arrow, aiming at the glowing eyes coming tower your camp, but wait to get a better shot. Now that they are even closer, you can all hear the strange, dark and unspeakable utterances being hissed in the dark:
તેમને શોધો! કરોળિયાએ કહ્યું કે તેઓ તે દિશામાં જઇ રહ્યા છે!The orders are being given by a third group that you cannot see yet, but is advancing nonetheless. They must be some other kind of creature, because the things that you see right now don't seem like they are capable of any kind of speech.