Trumps of Doom - reading

Finished "Trumps of Doom" by Roger Zelazny. What I liked immediately about this one is that in my perception, Zelazny writes with a different voice for Merlin than he did for Corwin, enough that it doesn't at all seem like the same story (which is a trap some authors can fall into when beginning a new series - I'm looking at you, David Eddings). The story itself seems to have evolved pretty independently but conforms to the same universe from the first series. Sadly, like father like son, Merlin finds himself subject to a very similar, imprisoned fate. Finally, is Ghostwheel the original Skynet?