Action Comics #278: "The Unknown Supergirl!"

Download Action Comics #278

Script: Jerry Siegel (writer id by Bob Hughes)

Pencils and inks: Jim Mooney

Characters: Supergirl; Superman; Krypto; Linda Lee robot; Jerro; kryptonite dust; Lori Lemaris; Tough Tommy

Synopsis: Superman is ready to announce Supergirl's existence to the world, but she mysteriously loses her powers at the last minute.

Reprinted:

• in Action Comics (DC, 1938 series) #360 (March 1968)
• in Supergirl Archives (DC, 2001 series) #2
• in Showcase Presents: Supergirl (DC, 2007 series) #1

Note: Serialized story (vs. Lesla Lar) which continues until 285. Story is also claimed by Otto Binder.