His face was covered in burn marks, barely recognisable- no wonder I'd hadn't noticed him earlier.
No wonder I have not noticed him earlier - his face was covered in burn marks, it was barely recognizable.
mnli hypothesis: No wonder I have not noticed him earlier - his face was covered in burn marks, it was barely recognizable. premise: His face was covered in burn marks, barely recognisable- no wonder I'd hadn't noticed him earlier.