here, connor meets hela, who runs a repair shop called the botties' pit. however, to become an employee, he has to fix a robot in less than 24 hours. of all the robots he could have chosen, connor picks cubix, a one of a kind test model referred to as the 'unfixable robot.' the botties all tried to repair him, especially hela, who could never quite throw him out. cubix is the one memory left of her father, professor nemo, who invented the epu. sadly, he vanished after an experiment with a highly volatile substance known as solex.