Harshaw introduced him to the other three... and Jill startled him by addressing him with the correct honorific for a water brother, pronouncing it about three octaves higher than any adult Martian would talk but with sore-throat purity of accent.  It was one of the scant dozen Martian words she could speak out of the hundred-odd that she was beginning to understand - but this one she had down pat because it was used to her and by her many times each day.