These marks can be found in the main locations. Each location has a number of quests (the big ones) that can be repeated to help friends. After finishing / redoing this quests you will earn a mark of triumph. Having many of this allows you to buy barter items for armor and other items.
Quests cannot be gained for marks again for 5 days though you can still help friends out but without getting a mark
In this quest we take the role of Laeradan searching for his daughter.
The trick here is to pay attention to the skills since we will engage with 7 mobs more or less during this session play.
The trick that seems to work most efficient is to use the 3000+ damage skill that does not take aggro with any of the mobs then use the Damage Over Time (DoT) on the archers while we fight the melee mobs. Saeradan’s skills do not get interrupted but we need to kill as fast as we can.
The other useful skill is the one that stuns near mobs. This can be used to gain some time, heal and shoot the DoT skills to the archers.
The next useful skills are the two that deal Area of Effect (AoE) damage. While we kill ranged mobs with the DoT we will kill melee mobs with these two skills.
Same applies for the final 2 m ressistance fight with Amarthiel mobs
While in a fellowship you can open your quest book and check other players in the fellowship who have the same quests that you do. Notice the green icons. If you roll over your mouse on each icon you will see the name of the character who has the same quest.
The trick to sirvive here is to chain mezz the goblins. Mezz one, kill, search, kill the other one. Repeat.
SPOILER WARNING SPOILER WARNING
SPOILER WARNING SPOILER WARNING
The thing Gwindeth values the most is respect. Use emotes to show her some respect 
SPOILER WARNING SPOILER WARNING
SPOILER WARNING SPOILER WARNING