I wanted summer reading, and I found it in Robin Cook’s Marker. Beyond focusing a broadside at managed care, Cook mostly skips right along with a semi-thriller. Not having read any of the multiple bestsellers Cook has written before, I don’t know if all of them are medical. I suspect so, since he touts his medical training. Michael Crichton was trained as a doctor, too, and in using a thriller to make a political point, Marker felt like State of Fear. Neither one is a great read, unfortunately.