Comic Title: Showcase Presents:Challengers of the Unknown Vol. 2 TPB
Publisher: DC
Cover Date: 2008
On Sale Date: April 30, 2008 Direct Market Date April 23, 2008
Source: Previews, #232

Direct Market Date April 30, 2008
Source: ComicList, New Comic Book Releases List for Wednesday, April 30, 2008

Cover Price: $16.99
Page Count: 528
Editor: Peter Hamboussi

See Also: The Guide to Graphic Novels and Collected Editions

Title: "The Menace of Mystery Island"
Pages: 13

Feature(s):
Challengers of the Unknown (of Earth-1)

Artist: Bob Brown

Reprinted From:
Challengers of the Unknown #18 (1961)

Feature Character(s)

• Challengers of the Unknown (last appearance in Challengers of the Unknown #17; next appearance in Challengers of the Unknown #18)
• Ace Morgan (last appearance in Challengers of the Unknown #17; next appearance in Challengers of the Unknown #18)
• Rocky Davis (last appearance in Challengers of the Unknown #17; next appearance in Challengers of the Unknown #18)
• Red Ryan (last appearance in Challengers of the Unknown #17; next appearance in Challengers of the Unknown #18)
• Prof. Haley (last appearance in Challengers of the Unknown #17; next appearance in Challengers of the Unknown #18)

Supporting Character(s)

• June Robbins (last appearance in Challengers of the Unknown #17; next appearance in Challengers of the Unknown #19)
• Cosmo (the Challengers’ pet; next appearance in Challengers of the Unknown #21)

Villain(s)

• Several underworld criminals (no further appearances)

Synopsis:
June inherits a tropical island from her uncle. On the way to visit the island she and the Challengers intercept a small spacecraft. They rescue its sole occupant, an small orange creature. They name it Cosmo and take it on as a pet.

When the Challengers arrive on the island, strange events begin to occur. They split up which leads to Red and Prof being captured. The other Challs are soon caught as well, but Cosmo rescues them by chewing threw a net. Cosmo displays other abilities, such as force beams coming from his eyes.

The Challs discover that the island is being used by some criminals as an underworld supply depot. The crooks get the jump on them, but Cosmo rescues them again. The Challs finish off the crooks and turn them over to the authorities.