/usr/include/fizmo/ is in libfizmo-dev 0.7.15-2.
This file is owned by root:root, with mode 0o755.
..
/usr/include/fizmo/blorb_interface/
/usr/include/fizmo/blorb_interface/blorb_interface.h
/usr/include/fizmo/filesys_interface/
/usr/include/fizmo/filesys_interface/filesys_interface.h
/usr/include/fizmo/interpreter/
/usr/include/fizmo/interpreter/babel.h
/usr/include/fizmo/interpreter/blockbuf.h
/usr/include/fizmo/interpreter/blorb.h
/usr/include/fizmo/interpreter/cmd_hst.h
/usr/include/fizmo/interpreter/config.h
/usr/include/fizmo/interpreter/debugger.h
/usr/include/fizmo/interpreter/filelist.h
/usr/include/fizmo/interpreter/fizmo.h
/usr/include/fizmo/interpreter/history.h
/usr/include/fizmo/interpreter/hyphenation.h
/usr/include/fizmo/interpreter/iff.h
/usr/include/fizmo/interpreter/mathemat.h
/usr/include/fizmo/interpreter/misc.h
/usr/include/fizmo/interpreter/mt19937ar.h
/usr/include/fizmo/interpreter/object.h
/usr/include/fizmo/interpreter/output.h
/usr/include/fizmo/interpreter/property.h
/usr/include/fizmo/interpreter/routine.h
/usr/include/fizmo/interpreter/savegame.h
/usr/include/fizmo/interpreter/sound.h
/usr/include/fizmo/interpreter/stack.h
/usr/include/fizmo/interpreter/streams.h
/usr/include/fizmo/interpreter/table.h
/usr/include/fizmo/interpreter/text.h
/usr/include/fizmo/interpreter/undo.h
/usr/include/fizmo/interpreter/variable.h
/usr/include/fizmo/interpreter/wordwrap.h
/usr/include/fizmo/interpreter/zpu.h
/usr/include/fizmo/interpreter/zscii.h
/usr/include/fizmo/screen_interface/
/usr/include/fizmo/screen_interface/ScreenInterface.cpp
/usr/include/fizmo/screen_interface/ScreenInterface.h
/usr/include/fizmo/screen_interface/screen_interface.h
/usr/include/fizmo/sound_interface/
/usr/include/fizmo/sound_interface/sound_interface.h
/usr/include/fizmo/tools/
/usr/include/fizmo/tools/filesys.h
/usr/include/fizmo/tools/filesys_c.h
/usr/include/fizmo/tools/i18n.h
/usr/include/fizmo/tools/list.h
/usr/include/fizmo/tools/stringmap.h
/usr/include/fizmo/tools/tracelog.h
/usr/include/fizmo/tools/types.h
/usr/include/fizmo/tools/unused.h
/usr/include/fizmo/tools/z_ucs.h