Description Legend says that the janitor's shed is hiding a dangerous secret. Is it a monster? Is it an alien? Whatever it is, none of the students dare to go near the shed. That is, until Jules Jones arrives. Jules won't stop until he and his friends find the truth.for better or worse. In Level 11 - Lime, children read with increasing fluency. They will have learned most of the common letter-sound combinations and can read familiar words automatically without needing to sound out and blend.