When Mr Wiggley runs out of ideas for his Chrysalist - a list of fun things to do before he becomes a butterfly - Lloyd is happy to help and join in with putting it together, but he starts to suspect that Mr Wiggley is once again putting off pupating.

Lloyd feels surprisingly good after drinking some bin juice and so tries to promote it as a new health-giving elixir that he names Blue Fly - however, things get out of hand as his increasingly exaggerated claims prove to be completely unfounded.

Lloyd thinks he's developed a very vocal conscience after accidentally swallowing a dust mite named Alvi - Alvi likes being in Lloyd, and so as Lloyd's 'conscience' convinces him to do good deeds, Lloyd does not suspect the truth...