If you were interested, for some reason, in launching an attack on the pump house, you could come in either on the short side, with two hundred feet of concrete dam to cross, or the long side, which is about ten times the distance. If you were a team of Navy SEALs, you'd probably come in by water, climb to the top of the dam with ropes and grappling hooks, and catch everybody in the pump house by complete surprise.

  I could have used me a team of Navy SEALs, right about then.

  One thing that I didn't need any commandos to teach me: you plan for the enemy's capabilities, not his intentions – because you can sometimes figure out the first, but never be sure about the second.

  As we followed the short stretch of Route 307 that would take us to the dam, I asked Vollman, "What kind of spells is he likely to have prepared? Any idea?"

  Despite what you see in the movies, wizards and witches can't just wave their hands and make magic happen. It looks that way sometimes, but in fact any hand waving or magic words are used to activate pre-prepared spells. And those take some time, effort, and skill to get ready.

  It's kind of like using a gun: you have to load it to make it dangerous. And although you have your choice of ammunition, the piece will hold only so many bullets, and you can only carry so much ammo with you.

  "Impossible to know," Vollman said from the back seat. "He is so sure of his own invincibility, that he may have prepared nothing at all, on the assumption that he will face no opposition tonight."

  "But we can't count on that,"

  "No," Vollman said, "of course not. I only mention it as a possibility."

  Enemy capabilities: unknown. Terrific.

  We were approaching the exit that would take us to the access roads for the dam. "Does it matter which side we go in on?" I asked Vollman. "The short end or the long end?"

  "The faster our final approach, the less chance of detection," he said. "I see no advantage to the long way."

  "Sit is, then."

  I turned off the lights as we followed the narrow access road that led to the dam. No point in begging to be noticed. Anyway the full moon, shining down through the scattered wispy clouds, gave all the light I needed.

  It was a beautiful night. I wondered how many of us would survive it.

  "Vollman," I said, "can you scry the place before we go in – find out the layout, so we know what to expect?"

  He didn't respond right away, and I glanced over my shoulder in time to see him shake his head slowly. "I can do so," he said, "but as soon as I commence, Richard will sense the presence of magic close at hand. He will then be alerted to our whereabouts."

  Karl turned in his seat and looked back at Vollman. "If you don't scry, or use some other kind of magic, is he gonna know we're coming, anyway?"

  "Ordinarily, I would say 'yes.' Wizards are very sensitive to the presence of potential enemies. But tonight he is giving so much of his attention and energy to the ritual, he may be too preoccupied."

  "May," Karl said sourly.

  "May is the most accurate assessment possible under these circumstances," Vollman said. "I regret that I cannot offer you certainty, Detective. For all our sakes."

  There was silence as I braked the Plymouth to a slow halt about fifty feet from the chain link fence and gate that guarded this end of the dam.

  Then Vollman said, "But one thing that I can do is to counter any magic he uses against you, allowing both of you the freedom to disrupt the ritual and, if necessary, effect the rescue of Miss Markowski."

  "Well, that's a relief," Karl said, with no sarcasm at all.

  "It might be best," Vollman said, "if I were to remain out of sight for as long as possible. I can counter his spells from outside that little building as well as I could from within it."

  "So you can stop his magic," I said. "Can he stop yours?"

  "That depends on whose is the stronger."

  "And that's you, right?" Karl said.

  "As they say in those awful television programs I sometimes find myself watching, There is one way to find out."

Karl and I had each taken from the SWAT armory a pump shotgun, a selection of ammunition, and several of the "Splash-bang" grenades we'd seen the team use at Jamieson Longworth's place. We hurriedly loaded the shotguns, making our best guess as to what we would need in there.

  "Double-ought buckshot for the door," I said. I once saw a guy use some to make a very large hole in a brick wall.

  Karl rummaged through the boxes of shotgun ammo. "Zap the lock? Like the SWAT guys did?"

  "The door's probably made of iron," I said. "We take the hinges. It's more certain."

  Karl looked at Vollman. "Can't you take the door down for us, with magic?"

  "I could," Vollman said. "But since you have the means on hand yourselves, it is perhaps best that I conserve my energies."

  That was Vollman's fancy way of saying "Save my strength." It didn't exactly inspire confidence.

  The shotguns held five shells apiece. "For the rest, load whatever you want," I said. "We don't know what we'll be dealing with in there. And don't assume you'll get the chance to reload, because you probably won't."

  I loaded two shells filled with blessed silver pellets, then one of garlic-soaked rock salt, then another double-ought buck, and one more silver for luck. I didn't pay attention towhat Karl picked.

  Once we reached the chain link fence at the dam's entrance, I saw that the gate was secured with a chain and a big Yale padlock. Maybe Sligo had come in the long way; or it could be he just floated over it.

  A shotgun blast would take care of the lock, but I didn't want to announce that we were here until I had to. I looked at Vollman and said, barely above a whisper, "Can you...?"

  The old vampire nodded, took hold of the lock, and said something under his breath. It sprang open, and I watched him remove and toss it aside. I was sure glad he was willing to expend the energy.