I believe the answer is his return home ^^
d. giving the reader enough detail to form a picture in his or her mind.
The key to description is to give the reader enough detail or information in order to form or create a vivid picture of the thing, place or scenario in his or her mind. The important features, the characteristics of the subject being talked about must be clearly described an emphasize in order for a description to be a success. It is only when the listener or the reader be able to draw the scenario out of the descriptions given will we say that the description is delivered well.
It means most important. For example, a priority for you would be to get good grades. It's currently the most important thing for you right now.
This was inspired because of Dahls experience with chocolate companies during his school days.
Hope this helps and if you can add this as brainliest then that would Rlly help u don’t have to tho :)