I read "Under the Yoke" one summer as a teenager.  I kind of dreaded the fact that I had this long book to read and that I had heard so much about.  I thought how good could it be?  I could not put it down!  I would sit for hours and read, and re-read some passages.  I finished it in about a week and I loved it!  I hope not too much gets lost in translation in the English version.

I haven't read the other Vazov works that are recommended above, but I've heard they are great, too.  I may read them myself sooner, rather than later.

Happy reading.

-V