Dan and the not so magic Castle

Yesterday I had planned a great adventure. A boat trip to Hainburg, a small town on the Austrian side of the Danube. I figured out we could catch a boat from Devin and the price was cheap at 4 euro return so everyone could afford to come. So I invited a few people and told them the plan. In the morning we all met and walked to the dock of the boat. I was all excited, I had got these 9 people together to go on a trip with me, so it would be a a great day! Little did I expect what was in store. We arrived at the dock and I read the sign, at first I was a little disappointed because the sign read 11:30 for the boat, not 11 as I had advertised. That disappointment steadily grew as I looked up the sign to the top, to realsie that this sign only advertised boats from Bratislava to Devin and return. With horror I looked around to the people around me, they were all expecting a great day out with a boat trip and walks through a small town. Softly mentioning what I saw they all sighed and decided to wait until 11 to see if a boat showed up anyway.
But the boat never came....
it never came.....
Depressed I walked down onto the docking plontoon, thinking I might just throw myself into the murky, cold, fast flowing water of the danube. Something made me turn around, and when I did I saw a remarkably well dressed young man.

"hello there young man, would you like to buy a castle" He said with a huge grin across his face.
I wasn't too sure, and told him as such, you see I only had twenty euro's left of my money and I needed to make that last a month more. In reply I was told by this man not to worry, it was a magical castle, sure most of its walls had fallen down, but the ones that hadnt were structural and magical, and so would be able to be used to re-magicafy the rest of the walls. The fact that it had no roof wasnt a problem eiher, I was told it was exactly the same as the roof in the Hogworts castle and so I would always be able to see the sky outside. At this point I was getting very excited, I asked the price.
Instant deflation, the price was 3 billion euro's. I was told not to worry, If I gave him 20 euro's now then I would be able to pay off the magic castle in steady monthly repayments. I thought about this and decided it was the best Idea I had ever heard and so readily handed over my 20 euro. As soon as this happened the man disappeared, but I owned a castle. To cover the disappointment of not getting the boat, I invited all my friends to come over and enjoy my new house in the castle. All was great until evening, when It started to rain, It turns out the castle doesn't have a magical roof. More disappointment came when we were asked to leave the castle by the staff as it was closing time. No matter how many times I told my story they didnt believe me and told me I had to leave. Slowly I walked back home, on the wet, cold, stormy night. When I finally got home, all I could do was make myself a cup of instant coffee and sit watching the tv, but I wasn't watching, I was crying..
I lost 20 euro after all.

Above is the Castle that I thought I had bought... (Devin Castle is in my home town of Devin here in Bratislava)