Reported 11 months ago for 3.4.3, the tile for wrinkled spellbook
has a spurious brown spot on the far right. Several other books
have spots drawn outside the book proper for tile decoration, but
that doesn't seem to apply here. The report suggested changing
'K' to 'M', but that just changes it into a spurious white spot.
Change the stray 'K' to '.' to make the odd spot go away.