How do I... Insert an image on a wiki page

Create a link to the monster in question. The link can be a simple BumpyWord? aka WikiWord? so that twiki can see it is supposed to be a link.

For example MonsterChoker, MonsterDarkCreeper . In that case, you can just type it literally into some other page, and twiki will recognise
that it should be a link.

Advanced Option

  Instead of just making the link as plain BumpyWord (like "MonsterChoker"), you can write it  

   as [[MonsterChoker][choker]] so that it links to a page MonsterChoker but it displays as "choker"