since there is nothing in the ms itself to explain this puzzle , i can only conclude that my father did , in fact , write at first that tifanto was lost and never came back , and also that he took part in the wolf-hunt ; but observing this contradiction he introduced mablung in the latter role ( and probably did this even before the tale was completed , since at the last appearance of mablung his name was written thus , not emended from tifanto : see note 15 ) .