/usr/lib/libPantomime.so.1.2 is in libpantomime1.2 1.2.0~pre3+snap20071004+dfsg-4build1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/GNUstep/Frameworks/Pantomime.framework/Versions/Current/libPantomime.so.1.2