日本語 Japanese Ask Questions Thread 4

If you have a question about the language, ask it and fellow 4channers might see it and answer it for you.


Japanese Ask Questions Thread2
http://dis.4chan.org/read/lang/1206158123/1-40

Japanese Ask Questions Thread3
http://dis.4chan.org/read/lang/1267485093/1-40

Can someone help me breakdown and explain this sentence?

ジンを再び封じ込めるてめには
この村でしか作ることのできないミスリルの
指輪が必要です。それを恐れた
ジンはこの村に呪いをかけたのです。

I always have trouble when しか~ない appears, especially when mixed with other stuff.