An axe is essential if you want to exit the graveyard.
There's no need to explore the mausoleum in order to finish the game.
We're getting attacked immediately after entering the mausoleum.
There are some very tough monsters here.
Recruiting our fifth party member.
The fireball spell is good against multiple targets.
The detect invisibility spell makes it much easier to kill these monsters.
Finally, there is the ruined city!