Collect the indicated number of hidden pages to unlock the corresponding comic book.

First Black Cat: 125 pages
First Gwen Stacy: 350 pages
First Iguana: 250 pages
First Lizard: 15 pages
First Rhino: 50 pages
First Scorpion: 80 pages
First Smythe: 500 pages
First Spider-Man: 5 pages
Modern Lizard: 30 pages
Vs. Vermin: 175 pages