Book 9, Chapter 1: Plans of the Golden Host  

'Now you must return to Imlad Lalaith and tell Braiglinn that we have seized our fist foothold across the river. It is time for the second party to cross, for it is they who hold the stealthy undertaking of bringing Mazog to Dol Guldur in trade for the dwarf-prisoners. The launch-officer, Calengoth, near the boats, will ferry you back to Lothlorien.

'I will see to the rest of the preparations necessary for Echad Sirion to serve as the camp for our first excursions into Mirkwood.'

The first crossing of the Anduin by the Malledhrim has been successful, and now it is time for the company charged with transporting Mazog to cross as well.

Objective 1
Talk to Braiglinn at Imlad Lalaith
Braiglinn is at Imlad Lalaith on the Lothlorien side of the river Anduin.

Afirimbes is pleased that the first crossing has been successful and has sent you to Braiglinn to notify the party responsible for bringing Mazog to Dol Guldur the time has come for their own crossing.

Objective 2
Talk to Braiglinn and travel to meet the members of the company
Braiglinn is at Imlad Lalaith on the Lothlorien side of the river Anduin.

The time has come to meet the members of the company bringing Mazog to Dol Guldur. You should speak with Braiglinn when you are ready.

Objective 3
Talk to Afirimbes at Echad Sirion
Afirimbes is waiting to speak with you at Echad Sirion, the camp on the shores of Anduin, on the border of Mirkwood.

You have met the company responsible for bringing Mazog in secret to Dol Gulfdur, and they have crossed into Mirkwood. You should speak now to Afirimbes.