Answer: Hope this helps!
Explanation: Most mythologies, in fact all that I can think of, include gods that are basically humans with super powers. Sure some (like Ancient Egypt) have animal headed gods and some have animal forms (like Anansi of the Akan mythos), but they all basically act like humans only they can control the weather, harvests, tides, etc…
The bolded word here is the BESTSELLER. This kind of complement is a direct object complement. The adjective overnight denotes to the object bestseller which is an adjective. Another adjective complements another adjective, thus, the term direct object.
gregor is disappointed because he was very against the transformation