(The Epilogue is in the form of a memorandum from the chancellor of WICKED to her associates regarding the Maze Trials, Group A.)
She is pleased with the results, and surprised that twenty survivors refused to give up, even with the final variable (being Chuck's murder and their "rescue").
She says that the subjects will eventually remember why they've gone through the trials and the purpose for the experimentation.
The mission of WICKED is to "serve and preserve humanity, no matter the cost" (E.6).
The subjects will be allowed one full night's sleep before Stage 2 begins. See? Chapter 3 WICKED is super nice.
Group B's results were also amazing (ummm… there's a Group B?), but she needs to process the data.