I feel rather creepy and chilly, but perhaps it's only with seeing the frogs.

What funny red eyes they've got.

What can they be going to do ?" She forgot her fears in the interest of watching them; Hugh, too, stared with all his eyes at the frogs, who, arranged in regular lines round the edge of the boat, began working away industriously at something which, for a minute or two, the children could not make out.

At last Jeanne called out eagerly, "They are throwing over little lines, Cheri--lots and lots of little lines.

There must be frogs down below waiting to catch them." So it was; each frog threw over several threads which he seemed to unwind from his body; these threads were caught by something invisible down below, and twisted round and round several times, till at last they became as firm and strong as a fine twine.