A- A preocupation for fate and destiny.
In The Raven, the writer sets an atmosphere of uncertainty: strange things may happen.
In the excerpt the witer mentions a prophecy: this tells that something odd/ terrifying is going to happen in the future.
The first one. lightening bolts is plural.
Superlatives are verbs that show degree, examples are good, better, best OR bad, worst, worse.
Because there are three or more being compared you want BEST so that answer is most skillfully.