Re: was Mazgus an apostel or really a devoted serv
Walter is right (of course), you can see the "egg" apostle reaching for Mozgus with some kind of tendrils in page 8 and 9 of Volume 20 right before Mozgus seems to defeat the darkness and grow wings.
His hometown, Elfheim would probably make a very good sacrifice...especially if Gutts should have left Caska there. :o
Evil Puck... I just can't imagine it...