I ought to have written a review of Redtail first, suffice it to say that Redtail is three tens. This probably makes Blackfeather three elevens. As great as The Godfather was/is, the sequel surpassed it; a truly rare feat, one to be savored; so to with Blackfeather. Redtail was/is incredible, great, wonderful. Blackfeather was more and the same and different and as always with Arolsav, incredibly well written, and exceptionally well edited and proofed.
Just a little time travel, just a little body snatching, just a little unbelievable and yet thoroughly believable...OK, maybe not thoroughly believable. The requirement for suspension of disbelief is minimal for some reason, maybe it is the excellent writing, the flow of the plot, or perhaps just the way the characters are drawn so that I, the reader, has been totally drawn in to live in their world.
Read Redtail first, then read Blackfeather, just be sure not to make any plans for the next couple of days. Enough, go read.