Answer:
Squash and Stretch in animation (S'nS) are a more functional way to make the character you are animating come to life or become more like a cartoon. For example, a ball. You can squash it to make it look like it is going down, and stretch it to make it look like it is going up. This creates the squash and stretch motion.
(my opinion about this technique. I like to use it to make it look more clear and bouncy.)
Gothic elements are presented in the book when the author reveals that Dr Jekyll and Mr Hyde are the same people just doubling. This is shown by revealing dark themes of the supernatural when Jekyll transforms into Hyde by the fear of committing horrific crimes as himself and feeling the guilt. Some gothic characteristics this gothic book includes is death and madness which is shown in one of the themes good versus evil. Jekyll and Hyde are metaphorical to the idea of good and evil exist in everyone and the struggle of the two sides raging within Jekyll which result in his death.
