Amarion has told you of a particularly valuable hidden cache secreted within the Black Dens -- unfortunately this was before it was overrun by the deadly Shadow Wolves. If you can recover the Weapon-lore scrolls hidden away within, it would be a considerable boon to the Grey Company.
'The provisions will come in handy, but there are other caches as well.
'I know of another further to the south-east. It contain scrolls of weapon-lore recorded by the Elves of Rivendell long years ago.
'The virtues such lore might bestow upon our weapons would be invaluable to us in the South.'
Amarion has pointed you to a cache of weapon-lore scrolls he says is hidden within the Black Dens, south-east of Echad Dagoras. He believes it should be buried about fifty paces west of the cavern floor marked with the Rangers' rune.
Amarion said the cache of weapon-lore scrolls would be buried about fifty paces west of the rune-marked cavern.
Amarion is at Echad Dagoras, north-west of the Black Dens.
You have discovered the Rangers' cache and dug up the scrolls of lore hidden there. Now you should return with them to Amarion.