Detective Comics (1937) Annual #5

ECLIPSO: THE DARKNESS WITHIN Annual Crossover Event continues. The Ventriloquist helps the Joker escape from Arkham Asylum, inspiring rage in the heart of Commissioner Gordon…rage that triggers the madness within him and releases an Eclipso.

Written by Alan Grant and John Wagner, with art by Tom Mandrake and Rick Magyar. Cover by Sam Kieth.

68 pages. Cover price $2.50. (Note: reference picture, not an actual scan)