to their home planet; that somehow the miners on Orede had found that
they had blueskin neighbors, and died of the consequences of their
terror. It was a risky guess to make on such evidence as Calhoun
considered he had, but no other guess was possible.

If his guess were right, he was under some obligation to do exactly
what he believed the girl considered her mission--to warn all
blueskins that Weald would presently try to find them on Orede, when
all hell must break loose upon Dara for punishment. But if there were
men here, he couldn't leave a written warning for them in default of
friendly contact.

They might not find it, and a search party of Wealdians might. All he
could possibly do was try to make contact and give warning by such
means as would leave no evidence behind that he'd done so. Weald
would consider a warning sure proof of blueskin guilt.

It was not satisfactory to be limited to broadcasts which might or
might not be picked up, and were unlikely to be acknowledged. But he
settled down with the communicator to make the attempt.

He called first on a GC wave length and form. It was unlikely that
blueskins would use general communication bands to keep in touch with
each other, but it had to be tried. He broadcast, tuned as broadly as
possible, and went up and down the GC spectrum, repeating his warning
painstakingly and listening without hope for a reply.

He did find one spot on the dial where there was re-radiation of his
message, as if from a tuned receiver. But he could not get a fix on
it: nobody might be listening. He exhausted the normal communication