Fighting off the Moss

The life of Shinewood exists even in the smallest piece of moss. We can't do this if it requires us to destroy that. Fortunately a Wizard told us how to read tombstones without destroying anything.
Because every plant in this forest obeys the Torges' orders, if we rub the tombstone with Torge's Leaves, the moss will part for a moment. To do that, we will need <HFFFA7272>13 Rotten Stems<HFFFFFFFF>. I want you to collect them. As you know, I cannot touch them as an Elder of Ellore. You can get them by using your <HFFFA7272>Collecting Skill<HFFFFFFFF> on <HFFFA7272>Rain Torges<HFFFFFFFF> to the <HFFFA7272>Northwest of town<HFFFFFFFF>.

It may be temporary but there's no better way. Don't be hesitant because you don't know the forest. Just trust me and go. Get <HFFFA7272>13 Rotten Stems<HFFFFFFFF> by using your <HFFFA7272>Collecting Skill<HFFFFFFFF> on <HFFFA7272>Rain Torges<HFFFFFFFF> to the <HFFFA7272>Northwest of town<HFFFFFFFF>.

Thank you. Time to read from the square stone. Hold on a second. I'll tell you what it says.