The series listings for Mike Resnick are all bollixed-up from The Dreamscape Trilogy through Teddy Roosevelt.

It almost looks as if it is trying to show book 1 of The Dreamscape Trilogy as being alphabetized under "Dream", and book 2 alphabetized under "The Dream".

https://www.worldswithoutend.com/author.asp?ID=184

ETA: Never mind, I tried changing the series title to Dreamscape Trilogy, and that fixed it.