OK, I have found the problem. The files were originally named manor, manor1, manor2, manor3. When I transferred them to the BBS disk image as "sentry adv", "sentry adv2", "sentry adv3" well, yes, "sentry adv3" is actually "sentry adv4". Somewhat of a mess.
I am currently straightening it out but unfortunately the final compilation was done on a Mac mini computer in another state and to which I currently do not have access to check for backups. So, I'm having to use older files (the 22 May disk image), fix some syntax errors and add part 4 of the adventure. This is complicated by:
1) fumbling around with the keyboard layout in FreeBSD (gtk3). The "insert" key is actually the "delete" key;
2) I'm rusty on how to complete the adventure after 3 years
and
3) I'm currently stuck trying to change the case of the characters from lowercase back to uppercase because otherwise I cannot delete the files and save them back to the disk image after editing.
I will get there in the end.
I did discover that it will not run on the unexpanded VIC-20. It probably needs at least the 3K expander for some machine code I added for custom commands, but to get going I'm using a fully expanded system which works.
