Justice League of America 105 (1973)
Specter in the Shadows!
While looking through a stack of silver age comics I was thrilled to come across this DC house ad toward the back of JLA 105. I had never seen this style of “DC explodes in 73” ad and was happy to see it featured Swamp Thing 4, Monster on the Moors.
Spectre in the Shadows was written by none other than Swamp Thing co-creator, Len Wein. In 2015, the JLA 105 cover was featured on the cover of the Len Wein issue of Alter Ego 135.
Swampy is in good company next to Kamandi.