I am trying to complete the lost tribe quest. However when I show reldo the brooch he gives me a book on shield of arrav. I have already finished that quest. How can I get the goblin symbols book?

After showing Reldo the broach try searching the bookcases.

I have searched every bookcase. One of the middle ones says check bookcase and keeps giving me the wrong book.

Goblin symblos book is the one. You may want to check the guide if you have done anything wrong...

Go down into the cellar (through the trapdoor in the kitchen). Use your pickaxe on the rubble to the far east of the room and proceed through it. Inside the cavern, take the brooch that spawns where the road splits into two. Go back to the Duke and show him the brooch. He'll tell you to talk with Reldo in Varrock Library (in the castle), who will tell you that there's a book on ancient goblin races in one of the bookcases. Search the bookcases on the west wall until you find it, and then read it.

 

 

 

It took me severala searches. Just keep trying. And only search the west ones.

Thanks! \