J N Lowther 
Darker Matter — Book 1 Dakor’s Darkness [EPUB ebook] 

Bradley White is an ordinary man who is transported against his will to a land incalculably distant where magic has shaped its growth and development, and where science has no place. He is forced by a ruthless being of unimaginable might to undertake an impossible task, one in which he will surely fail. The stakes couldn’t be higher; if he does fail, then all that he holds dear will be destroyed. Should he succeed, he is certain that his family will not be spared. He cannot hope to take on and defeat his adversary, but if he cannot find a way, then all is lost. His journey through this strange world is also a journey of self-discovery as he battles against despair and helplessness in his desperate attempt to find a way to save his family.