The approach to the Orc-fortress atop Amon Angened is watched by many siege-engines based at the Gostannon. If those engines cannot be destroyed before the Malledhrim's attack, the Golden Host will suffer grievious casualties beneath the hail of bolts and stones.
'We are nearly ready for a decisive assault upon Amon Angened, but my men have warned me that a set of siege-engines lies in wait, looking upon the steep paths that we must scale to take the fortress.
'To muster an assault under the rain of such dark engines would result in needless death and might even cause our assault to falter.
'If you can destroy those engines before we begin the assault, the Orcs will have no choice but to face us in battle, where our valour shall prove unmatched!'
Siege-engines can be found at the Gostannon Orc-camp, north-east of Echad Sirion.
Fuirgam has asked you to destroy the Orkish siege-engines in the Mirk-eaves.
Fuirgam's Aide is at Echad Sirion, on the eastern banks of the Anduin, south-west of the Gostannon.
You should return to him with news of your success.