The Darker Mask

From Author Wars - https://authorwars.com/publications/the-darker-mask-250424.html

Overview:

Title: The Darker Mask
Author: Gary Phillips, Christopher Chambers
Year: 2008
ISBN-10: 9780765318503
Publisher: Tor
Price: $25.95
Pages: 368
Binding: Hardcover
Type: Anthology
Title Reference: The Darker Mask
Notes: The front cover, but not the title page, has the subtitle "Heroes from the Shadows".
Page 9 is "Acknowledgments"; pages 361-365 are "About the Contributors".
Month of publication from Locus.