There are glimpses of family love, which is the novel's hidden theme. The portrayal of conflicts and inner workings of the mind are incredible.
ご質問ありがとうございます。
"There are glimpses of family love, which is the novel's hidden theme."=「家族愛が所々見受けられます。そしてそれが小説の隠れたテーマです。」
"The portrayal of conflicts and inner workings of the mind are incredible."=「葛藤や心の動きなどの描写は凄い。」
ご参考に。