These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
A Fridge Tear Jerker occurs, too. At one point, Hanna calls Worth and Conrad, telling them to go to Salem. He then tells them that if they should run into Veser or Toni, to pick them up. Neither Toni, nor Veser, nor even Ples appears once in the story, which means that it's quite likely that they're dead.
Partially averted, as it turns out that Toni, at least, is alive and working with some werewolves, and Ples shows up holed up in a clock tower with The Wild Hunt on his heels later in the series. And then of course they have to deal with that mess.