Phlip (Flip) spelled the way it is, is explained in the story.

It is a tale that might be more enjoyable being read aloud.

What would you do if you suddenly saw a green creature, rounded and supposedly deaf, in your bedroom reading one of your books? Read to find out Forests reactions, especially when she later finds it can speak and hear because of what?

Both are avid readers. In fact Phlip reads at the pace of a computer! Yet he is not a robot, but a Pill from Pingo, a strange creature, not from Mars as Forest thinks first he must be...