Action Comics (1938) 360-A

*The complete story of how Supergirl's existance on Earth was revealed ... in seven parts!

Part 1 - The Unknown Supergirl
Superman prepares to announce the existence of his super-cousin to the world ... but fate steps in to deal a cruel blow to the Girl of Steel's hopes ... a blow that could spell the end of her super-career.

Part 2 - Supergirl's Secret Enemy
Linda is finally adopted, but the mystery villain who stole her powers has new schemes that pose peril for the ex-Supergirl and her new foster parents!

Part 3 - Trapped in Kandor
Supergirl leads a new life as Lesla-Lar in the bottle-city of Kandor, while the REAL Lesla-Lar, masquerading as the Maid of Might, teams up with that arch-villain, Lex Luthor!

Part 4 - The Three Red K Perils
Supergirl MORE that recovers her super-powers! She becomes immune to Green Kryptonite! But Red K, that's another story, as she learns when she undergoes some incredible transformations!

Part 5 - The Super-Mermaid
Half-Supergirl, half-superfish -- that's the Maid of Steel when Red K catapults her into an astonishing undersea adventure in Atlantis.

Part 6 - The World's Greatest Heroine
At last the big day dawns, as Supergirl is revealed to a wonder-struck world -- and becomes the most far-famed femme on earth.

Part 7 - The Infinite Monster
Supergirl must prove her worth to the world by beating a beast so big she can only see a small part of it at a time.

*Source: Action Comics #360, Table of Contents.

This book is G-45, G-43 was Our Army at War #190 and G-46 will be Flash #178.