Spatchcock the Green stood up, coughed twice and looked about the ruins of his laboratory. “A little less red mercury next time”, he mumbled to himself as he made a note in his still smoldering notebook.
He gently kicked his apprentice Pune, who was still cowering behind an overturned table and said, “Clean up this mess.” He then wandered upstairs to to his library. Like most sane - for given values of the word sane - mages, Spatchcock did his experimenting in a specially warded, underground laboratory lest it damage his tower or indeed large swathes of the countryside.
As he ascended to the higher levels of the tower he happened to look up from his notes and and through one of the windows he spotted an armored woman riding towards the tower on a black unicorn. His pipe fell from his slack jaw at the sight.