As you all try your best to be concealed along the trail, with the exception of a few stray trips over rocks, you all head further down the trail. A few boulders and rock loom over you, their shadows on their trail.

Everyone make a perception check, with advantage

Perception - 21 

Z'ress Perception: 10

Graxian perception 14

J'eilil perception: 21

(Zress' advantage roll: 8)

There is an odd feeling, as if someone is watching you all. As you look around you, you notice something up above you on the rock. A face that is looking down upon you all, they shout something as you hear something up above. It grates as rocks are pushed into view then comes rushing towards you.

DEX save, DC 11, Damage on fail: 7, half on success.

Graxian calls out a warning as he sees the rocks start to fall.  He then tries to quickly move out of the way. 

Dex 5

But he fails to do so and takes a rock hard injuring him.

J'eilil sees the rocks and tries to dodge them.

5

She does not move in time, and is injured.

Dex: 21

Reso manages to spring out of the way as some of the rubble hits his feathers. 

Z'ress to also attempts to move out of the way of the rocks.

Dex Sav: 25

They brandish weapons from above as they yell, "Get them!". 

(Roll for initiative, the ambush was their action for the surprise round.)

Z'ress Initiative: 24

J'eilil initiative: 9

Graxian initiative 8

Reso Initiative - 21

(Player average: 17, +5 for nat20)

Order:

1. Players
2. Rearguard

[The cultists are 20 feet above you and have 3/4s cover (+5 to ac). You can head up the rocks but they are difficult terrain.]

(how about flying? Are they on a cliff base? I have 60 feet of flying movement I can do.)

Graxian moves up the hillside towards the attackers.  It's a tough climb but he moves 15 feet up and finds himself within 5 feet of one of them.  Drawing his sword he attacks.

Attack: 6 Damage: 11

(Do they still have cover if we are in melee range?)

J'eilil also moves up the rocks as fast as she can safely manage, gaining 15 feet.  As soon as she is within 5 feet of the nearest cultist, she attacks with primal savagery.

Attack: 6 Damage: 2

Z'ress will move to try and get in melee range as well, readying her quarterstaff for an attack. If she can get in range she will thwack it against the nearest cultist.

Quarterstaff: Attack: 18 Damage: 11

Kick: Attack: 11 Damage: Unable to parse dice roll.