Answer:
Metamorphosis
Step-by-step explanation:
Arduous = involving or requiring strenuous effort; difficult and tiring.
Metamorphosis = (in an insect or amphibian) the process of transformation from an immature form to an adult form in two or more distinct stages.
a change of the form or nature of a thing or person into a completely different one, by natural or supernatural means.
Intercede = intervene on behalf of another.
Novella = a short novel or long short story.