Ran across this fascinating vignette of Onegin Yusif Gadzhikasimov. I always like finding obscure stories about converts from Islam to Orthodox Christianity. I should note that Islam for Onegin was probably more of a sociological category than a real lived faith, given the time period he was living in.
Anyway, read it all here in Russian or just use Google Translator to get it in English (or whatever language you like):
About Monk Simon Gadzhikasimova