Which Alice?

ALICE IN PUZZLE-LAND
THE NEXT TRIAL This problem is quite simple: Since A told
the truth and accused one of the others, then B or C must be guilty.
Therefore A is innocent. If everyone changed his accusation, but
still accused someone else, B would have told the truth, and since we
know that A is innocent, B would have accused C. Therefore C is
guilty.
THE NEXT TRIAL Since A told the truth, and he accused
either B or C, then either B or C is guilty; so A is innocent.
Now, the White Knight was either told that C lied or that C told
the truth. If he had been told that C lied, he could not have known
who was guilty, because it could be that C is guilty and falsely
accused A (or for that matter B), or it could be that B is guilty and C
falsely accused A. So, given that C lied, there is no way to determine
whether B or C is guilty. On the other hand, given that C told the
truth, he couldn't have accused A (who is innocent), so he accused
B, and since he told the truth, B must be guilty. Therefore, the
Jabberwocky must have told the White Knight that C told the truth,
and the White Knight then knew that B must be guilty.
ANOTHER CASE Again, since A told the truth and accused
one of the others, he must be innocent. Now, if the White Knight
had been told that C told the truth, then, without further information,
he would have known that B was guilty (as we have seen in the
solution of the last problem). But the White Knight could not,
without further information, tell who was guilty; therefore, he must
have been told that C lied. Then he was told whom C accused, and
this enabled him to know who was guilty. If he had been told that C
accused A, he couldn't have known whether B or C was guilty. So he
must have been told that C accused B, which means that B must be
innocent (since C lied), and since A is also innocent, C must be
guilty.
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