Sorry for the delay. Having problems with uploading file to MODDB. I think the fault on my Internet Provider. Unfortunately, the Mystery can be downloaded only from the Russian site. Downloading procedure is quite simple. You can use a web translator, if it necessary. However, the Mystery v1.0 is released. I'ts full English Version. I wish you much fun while playing with my mod.
You can see visual guide for dowloading in my profile's gallery, it's include two screens with comments:
Also, please check Features of the mod:
and F.A.Q. (Frequently Asked Questions)
UPDATED: DOWNLOAD LINK FROM ENGLISH FILEHOSTER