There was trouble in New Peasland. A plague of hungry blubbits had wiped out the pea crops. Peas being the main staple in New Peasland, usually mixed with marmite and made into a tasty sauce, meant that the future looked grim for the increasingly hungry New Peaslanders.
In desperation it was decided to send a volunteer through the portal to the Eigth dimension, where it was rumoured that the inhabitants were kind hearted but rather directionless and random, and would no doubt be happy to be given some pea producing purpose.