"All right," agreed Grace, preparing pencil and pad for notes.
"We must remember," cautioned Margaret, "that we are pledged to protect ourselves as well as others. Now, how do we know it is safe to go to that island? Suppose there is some disease there?"
"We must find out more definitely about that, of course," spoke up Mary, who was now a professed Tenderfoot. "It would be rash to run into some dreadful sickness."
"Also, we must question our motives and make sure we are not doing this out of rank curiosity," declared Louise sagely. "That would be silly, even if pardonable, and I don't think we could make a very creditable report to headquarters on such a pretense."
"Oh, that is clear enough," insisted Cleo. "It is just this way. We were confronted by this fire-bug thing, directly we struck the place, and its evidence has been piling up ever since. Every few nights a fire breaks out—and no one is able to discover the culprit."
"And that note we found was a challenge. It was written for who ever might pick it up, and we happened to be the 'whoevers'" said Louise. "So it plainly seems like our duty to run down the Weasle."
"But just why would you think the writer was on the island?" asked Helen, who, having come down late was not entirely familiar with all the details of the situation.
"We haven't any positive reason for that supposition," admitted Margaret; "but things point that way, and we must run down that clue first. Besides, it is very strange how every one warns us to keep away from Luna Land. It makes it fascinating, to say the least."
"Almost a good reason for going," remarked Mary. "And now girls, will you come over to the hotel this evening, if you are free from other engagements? We are going to have a children's entertainment in the ball room, and I would love to have every one come."
"But our dresses?" asked Grace. "What should we wear?"