That seems to be the case. It was supposedly lost along with the Crimson Stone.
看来是，深红之石已经失传很久了。There was no other name for the original clan member, whose details had been lost over the years.
这位家族成员的共同祖先没有别的名字，他的详细资料已经失传多年。The secret of making First Aid Tents seemed to be lost forever when the Dark Elves were cut off from the Druids and healing arts of Irollan.
黑暗精灵与德鲁伊和艾罗兰的治疗技艺断绝关系后，制造急救帐篷的秘密似乎从此永久失传。Isabel Beatrice once told me of it, but it has been lost these four hundred years!
伊莎贝尔比阿特丽斯曾经和我提过，但是这个宝物已经失传4百年了！Fragments of a lost ancient Roman law text have been rediscovered in the scrap paper used to bind other books.
用来捆扎书籍的纸条，而后却被人发现上面记载着失传的古罗马法律条文。It might be a book documented the glory, unfortunately no one understands or has lost.
也许有一部书记载了这一辉煌，可惜没人理解或已失传。But other books are lost in the true sense of the word.
但还有些经卷属于真正意义上的“失传”。Just as pirates dream of finding gold and Bob Dylan fans dream of hearing lost songs, film-makers have visions of the perfect face.
电影摄制者对拥有完美容貌的演员的渴求与海盗的寻宝梦一样狂热，又如鲍勃·迪伦歌迷听到失传老歌的梦想一样执著。Eg: It is pity that this folk art has not been passed down.
例：这种民间艺术现在已经失传了，真是可惜。