Oh gosh Daisy, Day of Wrath scared the snot outta me. Because it was way too plausible. It’s like, I can watch horror films, but many “psychological thrillers” are too hard for me because they’re too plausible.
As for One Second After – I read it on my Kindle (and yes, I enjoyed the irony). It’s kinda the granddaddy of the EMP genre. And really brought home to a lot of people the potential for serious consequences if one happened. Another to read, if you need a non-fiction one to convince relatives to consider prepping for sustained power-outage is “Lights Out” by Ted Koppel.