/usr/share/man/man6/blocks-of-the-undead.6.gz is in blocks-of-the-undead 1.0-5+b1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/man/man6/BlocksOfTheUndead.6.gz
/usr/share/man/man6/BlocksOfTheUndead.6.gz