This particular Trade Paperback collection contains issues # 29-53 (and Annual#1) from 1975-1977. I was surprised to see that any of this series had been collected. When Marvel came out with this series they’d used characters that were created by Sax Rohmer (most notably was Fu Manchu, who in this series was also Shang-Chi’s father). When the series concluded in the early 1980’s my guess is that Marvel let the rights to those characters lapse. I mean, there’d be no reason to keep paying for them. But, because of that, whenever Marvel wanted to reprint any of the series, they couldn’t. Unless, of course they’d decided to pay the Rohmer estate to do so. The existence of this TPB must mean they’ve done so. I’m glad that they’re offering these stories in paperback book form. After all these years I can’t wait to reread them.