Ugh. As if the useless, empty, ink-wasting verb “seem” weren’t bad enough, they went and put an adverbial marker on its ugly butt and now it pops up in lazily-composed novels. Listen, something “seeming” a certain way either happens in your readers’ heads or it doesn’t; you can’t put the idea there.
Do a word search right now and destroy any and all instances of that sucker. You’ll be glad you did. Then go about replacing them all with writing that shows your readers what you tried to tell them.