Harry Potter pen

 
A surprise-writing implement in the kitchen this evening is this Harry Potter feather quill pen.
 
M was in Glasgow attending a meeting and he had forgotten to take a pen.  So he bought  this one for 99p in  the Pollock House shop.
 
Well, it will be a stocking-filler for some young family member at Christmas.
  
It's the pen that writes with invisible ink....