The Last Witchfinder is a novel with two different authors, only one of whose names appears on the cover. He is James Morrow, a writer whose reputation has not caught up with his accomplishments. Morrow is a very odd bird, a novelist of intellect, bravado and wildly phantasmagorical imagination. In the eight works of fiction that precede this one and have sometimes fused satire, philosophy and science fiction, he has, among other things, envisioned a literal Godhead the size of Delaware.
Now to the other author who takes credit for The Last Witchfinder: This one isn't a person. It is a scientific treatise written in Latin, Sir Isaac Newton's Philosophiae Naturalis Principia Mathematica. As the book wryly acknowledges, "I must confess that much of what lies between my covers is as opaque to me as to anyone else." Yet the Principia claims to be such an esteemed classic that it is often found "right next to the Bible, perhaps, or rubbing covers with Homer."
Morrow lets the Principia begin narrating The Last Witchfinder by revealing that books secretly write other books (albeit with human help) and that they sometimes do it for sport. For instance: "After Waiting for Godot acquired a taste for writing Windows software documentation, there was no stopping it."
This is fancy footwork, and it is a showy, convoluted way to begin what is essentially a historical novel, a picaresque tale steeped in philosophical debate. The author, like John Barth (whose Sot-Weed Factor this book recalls), does not wear his erudition lightly. But he wears it audaciously well.
The heroine of The Last Witchfinder is Jennet Stearne, whose last name must be a nod to the author of the similarly roundabout Tristram Shandy, and whose mission throughout this novel is unwavering. Jennet seeks to repudiate the idea of witchcraft on a scientific basis, and she hopes to do this with the help of the great Newton himself. "Isn't Newton the sage who wrote that book neither he or anyone else understands?" one scholar asks during the course of the story.
Newton has also been an inspiration to Jennet's Aunt Isobel, who teaches her niece the tenets of cutting-edge science. (The year is 1688, when Jennet is a preado-lescent girl.) But their experiments with dissection, the use of Anton van Leeuwenhoek's microscope and the principle of uniform acceleration postulated by Galileo come at an unfortunate time in the history of women and ideas. Aunt Isobel is deemed a witch and is condemned by her own brother-in-law, Walter Stearne, the self-important would-be Witchfinder Royal of England.
Jennet mistakenly enlists one of Newton's worst enemies, Robert Hooke, to testify on Aunt Isobel's behalf. In a comic episode rendered with sublime mischief by Morrow, Hooke pretends to be an obscenity-spouting Newton. He does his best to behave scandalously and winds up sealing Isobel's fate. Jennet then vows to avenge her aunt and escape her father in ways that the Principia finds immensely admirable. The Principia itself is engaged in "an Armageddon of ideas" with another book, the Malleus Maleficarum, the set of rules that is relied upon by witch-hunters to justify their endeavors.
Since he has been ill advised to persecute a woman as wealthy and prominent as Aunt Isobel, Walter is banished to the Massachusetts Bay Colony with Jennet in tow. The Last Witchfinder is the kind of rich, rollicking, episodic book in which many such changes of scenery will follow. Next, "Jennet, whose attitude toward these



