When The FF starts shrinking without warning only to return to normal, Reed can only think of one man who can help: Henry Pym! Not even Ant-Man may able to help them though when the real threat reveals himself. Doctor Doom has taken over rulership of an unseen micro-world & intends to use his newfound authority to subdue The FF…then sell them into slavery!
On pg. 6, Sue says The FF can't be sure Ant-Man exist but on pg. 7 it's revealed Henry's known to the world as Ant-Man. If the world knows he exists, why wouldn't The FF, especially a fellow scientist like Reed?