With pride,the persona first recounts how heroic his father is 'dad' is not afraid of anything including 'mythical monsters".therefore 'dad' is persona's Number One hero.however, the rhetorical question inthe last two lines of the poem show: teh persona's curiasity and puzzlement because the heroic father is actually afraid of a spider! in fact, the persona's mother has to remove the spider.
(i just copy from my teacher)