Mark Philips was the pseudonym used for SF collaborations between Randall Garrett and Laurence M. Janifer. As Mark Philips, they produced SF three novels featuring FBI agent Kenneth J. Malone. The stories originally appeared in shorter versions in Analog Science Fiction magazine in the late 1950s and early 1960s.
Published in Analog as "Out Like a Light," The Impossibles involves Malone with a new kind of crime wave. Late-model cars drive themselves away with nobody at the wheel. Valuables begin vanishing from locked rooms. Malone, the Government's expert on "impossibilities," is afraid it is a new kind of criminal -- who can disappear at will, walk through walls, and thumb his nose at the police. Malone is right . . .