Fantastic Four Vol. 1 Issue 148

"War on the Thirty-Sixth Floor!"

Returning to the Baxter Building following the revelation that Sue is willingly staying with Namor, the downtrodden Fantastic Four soon find that they are not alone in the Baxter Building. Reed is attacked first by the Sandman who is hiding out in Reed's lab. Freeing the rest of the FF who were trapped in an elevator, they begin searching out the rest of their headquarters for the other members of the Frightful Four.