Laguna Verde High School High School Library copy of the Ship of Theseus by V.M. Straka. is published by the Winged Shoe Press. On further inquiry was revealed to not be a real press in the real world.
The one time publishing company was named for Straka's novel The Winged Shoes of Emydio Alves.
In footnote 10 of chapter 10 on page 446, Caldeira informs us that the address of Winged Shoes Press is on New York's East 33ed Street, and she is writing in an office of theirs.