Superboy 1949 #115 - 2.0 - $9.00

An experiment results in Superboy exhaling nuclear fire. Thus, Lana suspects Clark of being Superboy when he won't speak in public.

Luthor tries to trick Superboy into sending him into the Phantom Zone.

Lana has exposed Superboy to Red Kryptonite in an effort to find out if he is Clark Kent.

On-sale date from 80 Page Giant Magazine #2 and copyright registration.

• - Inside front cover.
• - Letters from John L. Woodward, Randy Maurer, Robert Keller, Harley Broe, Steve Johnston, Ida Pearson, and Philip Lehash.
• How's Trix? - General Mills cereal.
• The Phantom Zone Fugitive! - Clark Kent does not appear in this story.
• - On the page between page 7 and page 8 of the previous story sequence.
• - A coupon good at Palisades Park and twenty other amusement parks in twelve states.
• - Subscription ad for Superboy, Adventure Comics and Superman's Pal Jimmy Olsen.
• 100 Pc. Toy Soldiers Set - Mail order ad for toy soldier set from the Josely Co., Dept.TNC-54, Carle Place, Long Island, New York.
• 204 Pc. Revolutionary War Soldiers Set - Mail order ad for toy soldier set from Revolutionary War Soldiers, Dept. RW-5P, Carle Place, Long Island, New York. Address is the same as for Josely Co.
• - Inside back cover.
• 132 Pc. Roman Soldiers Set - Back cover.