"I believe it's as I thought," said Elspeth Frazer to Charlotte Perry; "Gwen Gascoyne's quite off with Netta. Now, if she can only get into a better set she may be a different girl. I want to find out what she's really like, so I'm going to be nice to her to-morrow when we go the geological excursion." "Perhaps we have been rather horrid to her," returned Charlotte thoughtfully. "It was mostly her own fault for putting on airs when she first came up, and then making such friends with Netta. She couldn't expect any of us to have anything to say to her after that." "Probably she didn't know Netta." "I dare say not; but it shows she's a bad judge of character. All the same I've got Gwen a little on my conscience, and I'm going to try what I can do. She may improve now." Elspeth spoke the truth when she said that she had Gwen on her conscience. It had occurred to her several times lately that perhaps she had misunderstood her schoolfellow, and that she might have done more to help her. "Am I my brother's keeper?" rose uneasily to her mind. She had an uncomfortable feeling that in happier circumstances Gwen might have made a better impression on the Form, and that she and Hilda and Edith and Louise were partly responsible for her ill reception. "I'm very sorry if we've been Pharisees!" she thought. "Of course one wanted to keep to one's own set, and not have anything to do with the tag-end of the Form--but--Well, I mean to give Gwen Gascoyne a chance now, anyhow." The geological excursion was rather an event of the term. The Form had been learning geology with Miss Roberts, who promised to take the girls for an afternoon to Riggness, a place a few miles away on the coast, greatly noted for its fossils, where they could have a practical demonstration to supplement the information in their textbooks. On the Friday afternoon chosen for the ramble everybody started armed with hammers of all varieties, from Miss Roberts's beautiful geological pick to stout tack hammers and even toffee hammers. "One never knows--one might find an ichthyosaurus embedded in the cliffs!" declared Charlotte Perry, brandishing a wooden mallet and an iron wedge, as if she were prepared to clear away tons of rock in the pursuit of her researches. "Don't I wish we could!" said Miss Roberts. "But I'm afraid a few ammonites and belemnites will have to content us; those are quite difficult enough to get out intact. We shall do very well if we can only bring back some really perfect specimens for the school museum."