aturation. We rotate the youngsters around the bay-a different bay each year until they're age eleven. Then they're sorted accor

ys One through Nine, but Bay Ten has had all our losses

have had time to migrate too far. We have him pinpo

" Jorda

t now. Nothing goes in or out until we'v

d at Blalok

said. "Do as you're to

arantine?"

We can check them with anti

n Bay Ten," Jordan said.

here was a Santosia

come to think of i

see what makes that bay d

hy

you may not under

ake a c

dapts. It still must pass through its life cycle, but its intermediate host need not be one species of snail, fish, or copepod. Any cold-blooded host will do. What you have here is a Kardonian variant which has adapted to some particular intermediate host on this world. Until now, its final host was either man or Varl. Now we have a third, the Lani. And appare

said. "You're assuming too

"You can't say I

only one thing-how do you bre

e life cycle. The technique is thousands of years

en let's

Kennon said, "one must

uh

n break it, and like I said, it adapts. Its intermediat

ce else where it

t, or on its final encysting place.

y n

te it until the time is right for another epizootic. We have to kill its intermediate host-or

his head. "It sou

the fluke becomes well established i

nk it can be

lege try. But it's going to

do we

ni. Then we check each individual Lani. Then we check the life cycle of the parasite.

ig order,"

e're lucky that we're on an isolated land mass. That gi

you think i

nths at the minimum-and I wouldn't care to guess at the

I," Bla

said, "let's

interrupt our pro

re facing something here that can cripple you-maybe abort your whole operation. You have a choice-interr

e can't merely bypass

e death losses occur. Our tests for fluke infestation aren't that good. We have to work thoroughly and carefully

other Lani were dead, and before the end of the month two more followed them. Two months ago six died, last month eight, and so far this month you've lost four and you have over two weeks to go. Up to now they've all been from here, but two this mo

ot about it," he said. "After all,

We will," he sai