Ethan Gilsdorf reviewing "The Children of Húrin" wrote of the editorial function: "Of almost equal interest is Christopher Tolkien's task editing his father's abandoned projects. In his appendix, he explains his editorial process this way: "While I have had to introduce bridging passages here and there in the piecing together of different drafts, there is no element of extraneous 'invention' of any kind, however slight." He was criticized for having monkeyed with his father's text when putting "The Silmarillion" together. This pre-emptive strike must be meant to allay the fears of Tolkien's most persnickety readers."