Shield Author:Poul Anderson This books lists an ISBN of: 0425026739 that is not recognized by the system. — Koskinen had returned to earth with a strange new "Shield"--a device which enclosed the wearer in a force screen which absorbed all energies below a certain level. Light could come through the Shield, but no weapon could penetrate it. — Soon the whole civilized world ... more »was searching for this one man--a man armed with the greatest potential military weapon mankind had ever seen...The only question was: Which power would possess the Shield as its very own?« less