Y'Berion wants the 
Almanac, an old book hidden away in a goblin cave, and 
Talas knows the way. You start in the Swamp Camp, head to the Old Camp to pick up Talas and hear Milton out, then follow Talas to the cave and fight through the goblins to the book.
The goblins can be rough if you are under-leveled, so come ready and bring light for the cave.
- Healing potions.
- Food.
- A decent weapon.
- Good armor if you have it.
- Torches for the cave.
If the goblins are giving you trouble, train your combat with 
Diego before you start.
From the Swamp Camp, make your way to the Old Camp and head through it toward the main castle entrance. Talas is near the entrance. Talk to him and run through everything he has to say.
Go into the castle, head left, and find Milton. Exhaust his dialogue, then leave the castle again.
Outside, talk to Talas a second time. He agrees to take you to the book, so follow him.
Talas leads you across the bridge and on to the cave where the goblins are. Steady yourself before you go in, since the goblins hit hard and you do not want to blunder into a crowd of them.
Inside, you fight your way through groups of goblins.
- Take it slow and avoid pulling too many at once.
- Loot the goblins as you clear them.
- Their weapons are worth trying, since they hit well for this stage of the game.
- Check the side areas for chests and loot.
Eventually you reach a drop-down. Once you are down, hug the left side. This last stretch is thick with goblins.
Try to draw the goblins into the fiery patch nearby and fight them there. It thins the crowd for you.
With the goblins cleared, head for the decorated door, open the latch, and go in. The chest is at the back of the room, so open it and take everything. The Almanac is what you came for, but loot the rest too.
Leave the room and work your way back out through the cave, picking up any torches or items you dropped. Find Talas outside and he takes you back to the Swamp Camp. There, speak to Y'Berion and 
Cor Kalom and run their dialogue out to finish the quest.