He says this incorrectly. Their way of using 'ten and XXX' in this case, is 'ten and three', which is supposed to mean 13.Quote:
"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 :)