Defeat the Spiders

I've just found some s in my yard. My little helpers are trying to defeat them. However, I'm very worried about them. They could get hurt! Can you do me a favor? They are just behind the fence! Please!
== Gossip ==
Please! I can not deal with those hairy creatures...
, hurry up and take Character Name to help!
Character Name This is , he will guide you to find those damn Ravine Spiders! Please!
== On Completion ==
I wasn't mistaken! You have true hero potential! I'll prepare some rewards for you. You can pick whichever one you like best. I hope that it will be helpful on your journey.
Heroes like you can help the citizens in Candara! is not far from here. Let my Mount give you a ride!
== Notes ==
After accepting the quest, the player is joined by Mithra who will lead the player to the s (of which there are three).
Mithra will have these items to say in chat:
* Character Name Let's go, quickly! Those awful spiders are just behind the fence there!
* Oh Right! Right! You will see numbers in your action bar at the lower right corner of the screen. The numbers are the same as the numeric keys at the left side of the keyboard. You can use them to enable skills.
After killing the three s, the and a few more s will appear, and the player will be asked to complete an additional quest (there is no way to complete the quest without this 'additional' step). Additional quest is to kill the , which will provide the player with the necessary .