As explained in my answer to Listings and Babel (with some languages) are breaking hyphenation, characters with a non zero
\lccode are those that TeX considers as forming words, when hyphenation is tried.
masters are considered as words under normal settings, where
' have zero
(which is equivalent to having 39 after
=) is issued at the top level, the phrase above will have the “word”
and TeX will happily hyphenate it as
because this respects the rule that a hyphen must have at least three letters after it (in the English hyphenation rules there's
\righthyphenmin=3) and the pattern
hyphen.tex makes this into a very good hyphenation point.
For this reason, characters with zero
\lccode are not allowed in
My advice is to use a macro for those apostrophes and something like
and Lor\?themar felt that Kel\?Thuzad's controlled tone
where the zero width
minipage is just to trigger as much hyphenation as possible.