It's a brave attempt,
Urwen, but
Legate's shot went nearer. In fact, he quite hit the mark on the dead center.
It it indeed the Book of Mazarbul.
Here are some extracts from it that would help explain some things:
We drove out orcs from the great gate and guard... We have taken the twenty-first hall of North to dwell in...Balin has taken up his seat in the Chamber of Mazarbul...Balin is now Lord of Moria...Oin to seek for the upper armouries of Third Deep...westwards to Hollin gate - From East to West (the actualy direction!) many a success
We cannot get out. We cannot get out. They have taken the bridge and second hall... the pool is up to the wall al Westgate... We cannot get out. The end comes. They are coming. - They are coming, no more going, you can't watch the water flowing.
The book is quite "scarred" by all the holes, burns, and stains, and it is quite impossible to "heal" it, as
Legate has said. And it's not strong; it is very fragile.
The questions "will you...me?" refer to Gimli. We know Gandalf told him to take the book, so yes he took it, and he probably kept it at least part of the way, but we don't know it's fate from there. Did Gimli succeed to bring it and give it to King Dain?
Well done,
Legate, and good try,
Urwen. Maybe next time you'll be more successful.