He says this incorrectly. Their way of using 'ten and XXX' in this case, is 'ten and three', which is supposed to mean 13."Seven times have they succeeded.“ Then of ten and thirteen, only six worlds remain.
'ten and three' = 13
'ten and thirteen' = ...23?
It's supposed to be in the reference of the 13 different 'worlds' that there are, so someone had a brainfart when typing that in![]()