“A lot. Just a second.” Matsuko tapped keys on her data console, then nodded. “It takes about forty kilos of green moss to produce one kilo of raw mekoha paste, and about ten kilos of paste to produce one kilo of the final product. Call it a four hundred-to-one ratio.”

“And the most common dosage levels?”

“Lord, I don’t know,” Matsuko sighed. “Maybe thirty grams for a new user, but that tends to go up as the habit grows. Of course, given this new stuff’s greater purity, initial dosage levels may be lower, but I expect the Medusans simply maintain their normal levels and enjoy a stronger high.”

“So for every dose they sell, they’d have to transport—what?” Honor did the math in her head, then frowned at Matsuko. “Over twelve kilos of moss or more than one-point-two kilos of paste off-world? Does that sound right?” Dame Estelle whipped through the same calculation. When she nodded, Honor shook her head again. “That sounds like too much bulk to be very practical, Dame Estelle. Besides, if there were any significant long-term traffic in it, there should still have been enough in the pipeline for us to have seen some sign of it in our earliest customs inspections even if Major Isvarian’s people had missed it. If not the drug itself, surely the moss or paste would be hard to hide, and Ensign Tremaine’s been keeping as close an eye on outbound as inbound shuttles, I assure you.”

“So you don’t think there’s any off-world involvement?”

“I didn’t say that. What I said is that it seems to me that the raw materials would be too bulky for their interstellar transport to stay hidden. Barney Isvarian and his teams may not have been trained customs agents, but I feel sure they would have noticed that much moss going off-world and brought it to your attention. But—” Honor’s dark eyes narrowed “—that doesn’t mean someone couldn’t have shipped in the lab equipment to produce it locally. That would have required only a one-way penetration of Isvarian’s customs patrols—or ours, for that matter—and from what you’re saying, the mass ceiling wouldn’t have been all that high.”

“No,” Dame Estelle said thoughtfully. “No, you’re right about that. And in that case, our air traffic wouldn’t be distributing mekoha that’s been shipped in; it’d be local production, and the way you’ve choked off the smuggling wouldn’t slow it down a bit.”

“That’s what I’m afraid of,” Honor replied. “I’m not trying to shift responsibility for this, Dame Estelle, but it sounds to me as if the drug itself isn’t coming from off-world at all.”

“In which case, it’s an NPA responsibility,” Matsuko agreed. She breathed in deeply, then exhaled a slow, hissing breath. “I wish you were wrong, but I don’t think you are.”

“Perhaps. And perhaps it is an NPA responsibility. But it’s my responsibility to assist the NPA in any way I can.” Honor rubbed the tip of her nose again. “What sort of power requirement would a mekoha lab have?”