But it was hard to meet the sharp eye of Mercy Curtis and keep the secret. "And pray, Miss, why did you have to go into the water after the fish?" Mercy demanded.
"I was afraid he would get away," laughed Ruth.
"And who helped you do it?" snapped the lame girl.
"Helped me do what?"
"Helped you tumble in."
"Now, do you suppose I needed help to do so silly a thing as that?" cried Ruth.
"You needed help to do it the other day on the steamboat," returned Mercy, silly. "And I saw The Fox following you around that way."
"Why, what nonsense you talk, Mercy Curtis!"
But Ruth wondered if Mercy was to be so easily put off. The lame girl was so very sharp.
However, Ruth was determined to keep her secret. Not a word had she said to Mary Cox. Indeed, she had not looked at her since she climbed out of the open pool behind the boulder and, well-nigh breathless, reached the rock after that perilous plunge. Tom she had sworn to silence, Nita she had warned to be still, and now Mercy's suspicions were to be routed.
"Poor, poor girl!" muttered Ruth, with more sorrow than anger. "If she is not sorry and
