FANTASTIC FOUR (1961) #301

Captured by the Wizard! The sinister scientist has taken the Thing and Franklin Richards captive, and with the Torch on his honeymoon, only Reed and Susan are left to stop him! The Wizard and the Mad Thinker discover Franklin Richards has special abilities he has been trying to hid from his father. The Wizard kidnaps The Thing and Franklin, hoping to brainwash Grimm into being his lackey and exploit Franklin’s powers to his own advantage.