The Coffin Dancer

sometimes mixed with other material, ranging from .05 to 2 millimeters (larger than that is gravel, smaller is silt). It adheres to a perp’s clothing like sticky paint and conveniently leaps off at crime scenes and hideouts to link murderer and murdered. It also can tell a great deal about where a suspect has been. Opaque sand means he’s been in the desert. Clear means beaches. Hornblende means Canada. Obsidian, Hawaii. Quartz and opaque igneous rock, New England. Smooth gray magnetite, the western Great Lakes.
    But where this particular sand had come from, Rhyme didn’t have a clue. Most of the sand in the New York area was quartz and feldspar. Rocky on Long Island Sound, dusty on the Atlantic, muddy on the Hudson. But this was white, glistening, ragged, mixed with tiny red spheres. And what are those rings? White stone rings like microscopic slices of calamari. He’d never seen anything like this.
    The puzzle had kept Rhyme up till 4 A.M. He’d just sent a sample of the sand to a colleague at the FBI’s crime lab in Washington. He’d had it shipped off with great reluctance—Lincoln Rhyme hated someone else’s answering his own questions.
    Motion at the window beside his bed. He glanced toward it. His neighbors—two compact peregrine falcons—were awake and about to go hunting. Pigeons beware, Rhyme thought. Then he cocked his head, muttering, “Damn,” though he was referring not to his frustration with this uncooperative evidence but at the impending interruption.
    Urgent footsteps were on the stairs. Thom had letvisitors in and Rhyme didn’t want visitors. He glanced toward the hallway angrily. “Oh, not now, for God’s sake.”
    But they didn’t hear, of course, and wouldn’t have paused even if they had.
    Two of them . . .
    One was heavy. One not.
    A fast knock on the open door and they entered.
    “Lincoln.”
    Rhyme grunted.
    Lon Sellitto was a detective first grade, NYPD, and the one responsible for the giant steps. Padding along beside him was his slimmer, younger partner, Jerry Banks, spiffy in his pork gray suit of fine plaid. He’d doused his cowlick with spray—Rhyme could smell propane, isobutane, and vinyl acetate—but the charming spike still stuck up like Dagwood’s.
    The rotund man looked around the second-floor bedroom, which measured twenty by twenty. Not a picture on the wall. “What’s different, Linc? About the place?”
    “Nothing.”
    “Oh, hey, I know—it’s clean,” Banks said, then stopped abruptly as he ran into his faux pas.
    “Clean, sure,” said Thom, immaculate in ironed tan slacks, white shirt, and the flowery tie that Rhyme thought was pointlessly gaudy though he himself had bought it, mail order, for the man. The aide had been with Rhyme for several years now—and though he’d been fired by Rhyme twice, and quit once, the criminalist had rehired the unflappable nurse/assistant an equal number of times. Thomknew enough about quadriplegia to be a doctor and had learned enough forensics from Lincoln Rhyme to be a detective. But he was content to be what the insurance company called a “caregiver,” though both Rhyme and Thom disparaged the term. Rhyme called him, variously, his “mother hen” or “nemesis,” both of which delighted the aide no end. He now maneuvered around the visitors. “He didn’t like it but I hired Molly Maids and got the place scrubbed down. Practically needed to be fumigated. He wouldn’t talk to me for a whole day afterwards.”
    “It didn’t need to be cleaned. I can’t find anything.”
    “But then he doesn’t have to find anything, does he?” Thom countered. “That’s what I’m for.”
    No mood for banter. “Well?” Rhyme cast his handsome face toward Sellitto. “What?”
    “Got a case. Thought you might wanta help.”
    “I’m busy.”
    “What’s all that?” Banks asked, motioning toward a new computer sitting beside Rhyme’s bed.
    “Oh,” Thom said with infuriating cheer, “he’s state of the art now. Show them, Lincoln. Show them.”
    “I don’t want to show them.”
    More thunder but not a drop of rain. Nature, as often, was teasing today.
    Thom persisted. “Show them how it works.”
    “Don’t want to.”
    “He’s just embarrassed.”
    “Thom,” Rhyme muttered.
    But the young aide was as oblivious to threats as he was to recrimination. He tugged his hideous, or stylish,silk tie. “I don’t know why he’s behaving this way. He seemed very proud of the whole setup the other