No, that 4th doll house puzzle is optional.

Did you attach the right fins and the nose?
Does the first light turn green?

Thanks LAdyLinda.

cmumm.

I attached the fin with the circle on it and the nose. The first light does turn green but then when I flip the second switch no light goes on and when I flip the third switch I get Nancy saying she must have made a mistake.

Best to redo the wiring. That might be were the error occurs.

After placing the fins at the base of the rocket, open the box at the base of the rocket launcher and do the wiring.

I disconnected all the wires and reconnected them according to your walkthrough. Again the green light went on but no rocket launch just the error message. Maybe I just need a save.

I sent you the last saved game I have. Hope that is the one you need.

It is the right file but it came to me as a zip file and I can't figure out how to get it into my game.

It is NOT a zipped file. Do NOT attempt to open it - the game should open it for you once you placed it in the correct folder.

Download it to desktop.
Open the Castle Malloy folder that is in My Documents folder.
Place that sent file in that Castle folder.
Close folder and play-load as usual.

I figured out my mistake. I forgot to reinsert the key when I tried to launch the rocket after failing the first time. When I did that the rocket launched and the game played out. Thanks for your help.

That's great. You're welcome.