Fantastic Four 1st series #227 FINE/VERY FINE

Feb 1981. "The Brain Parasites!" Written by Doug Moench. Pencils by Bill Sienkiewicz. Inks by Bruce Patterson. Cover by Bill Sienkiewicz and Joe Sinnott. The Fantastic Four take a vacation to Pennsylvania! However, there is no rest for the four heroes as a meteor impact brings bizarre trilobite creatures to the FF's lakeside resort. Can the FF track down the alien parasites? Meanwhile, Franklin Richards' powers are growing stronger every day. 36 pgs. Cover price $0.50.