A simple Spawning Reader moving through the text of 'Misspelt Landings'
A 'simple reader,' in ochre, spawns infertile (non-spawning) perigram readers, in gray, if words in any and all of its neighboring directions complete perigrammic 3-grams.
These spawned readers can only travel in the direction that they were spawned and they die if the next word in that direction does not complete a 3-gram.

Screen-capture video from custom software—Java Applet, using Processing and Rita—Cayley & Howe, 2011.