Responses
The reason the novel was Mentioned was To show the readers that Adeline had multiple lives/reincarnations. The novel Reenact the first life, I think why it was remembered is that each reincarnation would remember the first life subconsciously Because In the first life, Adaline soul was separated from her body, making a Reincarnation remember the first life. so Adaline’s Life as Dylan she remembered her first life as a novel. But it’s shown in different panels that Adeline has lived multiple lives.

it was good but im still confused why the real adeline (who is now in dylan's body) thinks it was a novel? was it her subconscious speaking since she is now living her 2nd life?