A lot of weird things has happened in the lab since the new janitor's arrival. Now he tries to keep a watchful eye on everything. But suddenly a volcano erupts! Will the janitor be able to handle a volcano? A lab volcano!

Avissa Sharafi was born in Iran in 1969. She has a B.A. in Electronics. She loves children, literature and illustration, and above all she loves reading a great picture book to a lovely child. She likes writing, although sometimes she finds it exhausting. She is a prolific writer, having published over 50 tales in Iranian magazines and several books for children.