"Thank goodness! If the blacks had come Laddie would have barked," Prudence said, taking a long breath of relief. "How on earth did I not miss him myself!"

"Your mind was so full of Grizzel you had no room for another thought, but now—where is she, and how did she get down?"

"We must find her before Mamma comes home. Mollie, you are clever; think some more."

Mollie thought her hardest, but, as she explained, it was difficult to make suggestions when she knew neither Grizzel nor the surroundings very well. "She had no hat on; let us go and see if she has taken a hat. Would she be likely to go out without one?"

No, they said, going out without a hat was unheard of. So a search was instituted in the girl's room, and to their relief Grizzel's garden hat was missing—somehow, even to Mollie, it seemed less alarming to be missing with a hat than without one. In fact, if it had not been for the mystery of the tree—which certainly was very inexplicable—Mollie would not have disturbed herself. Grizzel had gone out, wearing her hat, carrying her basket, and accompanied by the large and capable Laddie. Most likely she would come back presently with some simple explanation to account for everything.

"I think she has gone for a walk. She got down somehow and ran off to give Hugh a fright. Let's go and look for her along the road," was Mollie's next proposal.

"If she has gone for a walk she will most likely come home by the lane, unless she went over to the parklands—oh, I wish she would come back! She never goes out alone in town, because she is frightened of meeting Things. She says there are all sorts of Things in town. Once she got lost in a big crowd, and I think it made her rather nervous. Besides, Mamma will be angry if she is not home when they come in, and we'll get such scoldings." Prudence sighed and looked longingly towards the white gate, but there was no sign of the wanderer's return.

"Suppose we go to the Look-out and reconnoitre, and if we see her we can go and meet her," said Mollie.

This seemed a good idea, so they climbed the ladder once more, and, one behind the other, scrambled to the top of the tree. But twilight was already creeping over the land—the brief Australian twilight which turns to darkness so quickly. It was impossible to see any distance, and the girls were turning their backs on the flagpole when Prudence stopped with an exclamation:

"I think I will light the lantern. Grizzel will see it from a long way off. Look in the house for matches, Mollie, while I turn the red glasses both ways."