The marble, if that's what it is, is a rather innocent steely blue orb about the size of a 'shooter'.  It has no distinguishing marks or features, weighs about as much as you'd expect, and seems quite mundane.<br/><br/>Anne has ample time to return, since Karloff is taking the opportunity to enjoy his shower.  He's just towelling off when she reaches the bathroom.<br/><br/>"Hmm.  You're serious about coming with me, then."