Issue: #28
Part 1 of the 3-Part "History Lesson!" So whatever happened to the mercenary group the Ravens, who were lost way back in the past in issue #5? The mystery begins when a trio of Vikings burst forth from a S.T.A.R. Laboratory, and deepens when an ancient relic is uncovered with an inexplicable connection to Black Canary. Oracle sends Canary on the trail, but the doorway to the past goes in both dire...
First appearances: Professor Orenstein
Creators: Chuck Dixon, Albert De Guzman, Digital Chameleon, Michael Wright, David Smith, Shannon Blanchard, Matt Idelson, Jackson Butch Guice
Characters: Barbara Gordon, Cheshire, Black Canary, Professor Orenstein