No need - I finally solved it!
Yes it was tough.
I do have a full walkthrough ready now but wouldn't this be too many spoilers at one time?
I'd rather like to give you some hints:
- Yes, the FIRST time you have to break open the security lock by using the sledgehammer.
- But the SECOND time you will do it with a key (the crypt key).
After breaking in the first time, immediately tell the old woman (Tarod's mother) about some grave-robbers having invaded into her son's tomb. Do not forget to read the note she leaves at the tomb!
CAUTION! Do what she writes on the tomb (get the key etc.), open the lock with the key you now have but do not go back to her immediately! After she leaves her house for the second time, she will lock it - so as a hobby-burglar, you need some "special keys" to get back in first! Note too that if you wait TOO long, she will be in again and there is no way to get the item from the house you urgently need, as she won't let you!
Maybe you have an idea where those special keys could be found. You will also need an item from another location to get those keys, including money; i. e. you have to pay for those keys.
Enough for now.
