Can anyone ID this book/type-in game from 8-bit era?

Back in the early 1980s, when the Atari and C64 were popular, books of
type-in programs were quite common. I had a C64 and was always looking
through the computer sections of my local bookstores for new and
interesting stuff.

While most books had multiple shorter programs, I once found a book that
was devoted to a single type-in text adventure. I didn't buy it because the
listing was VERY long and I didn't want to do that much work, but I've
always regretted not getting it.

As I recall, the first part of the book was devoted to setting the mood
for the game. If I remember correctly, it had things like fake newspaper
articles, letters, etc, similar to the type Infocom used to include, only
printed in the book, rather than being included separately. I believe the
plot was the typical relative dies, you travel to their mansion for the
readng of the will and must search for treasure/solve a mystery, or
something similar.

One detail that I remember was that the program listing had sections of
data separated by the days of the week. In other words, there was a block
of data for Monday, a block of data for Tuesday, etc.

Also, I'm pretty sure that the same book was available for different
computers, such as the C64, Atari, Apple, etc.

Has anyone ever seen this and/or know what it was called?

On Wed, 15 Mar 2006 12:51:44 +0100, "Katzy" <katzy DeleteThis @noname.at.all> wrote:

>Yes, the two of them. It's 'The secret of Arendarvon Castle' btw. It is
>about a disappeared reporter who was halfway his reports; you have his
>notes, paper articles with pictures and photographs. The second one - oh,
>well, no english title given, maybe only Dutch then - is about flowers and
>insects.
>
>Indeed some large listings, divided in weekdays - every day a piece - they
>are only numbers and letters (DATA) plus a decoder listing and one to
>complete the game. How glad I was to find the final gameplays!

Thank you. Now I just need to find an English copy of it.