"What's that?" puzzled Ato as the hippopotamus made her way leisurely between the trees. "Looks like mushrooms, Sammy! Wait, I'll just pick me a few and see." Hooking his heels in Nikobo's harness, Ato began vigorously cutting from the trunk of one of the trees the colored fungus growths which sprouted in great profusion just above the water line. Nikobo bravely offered to sample some, and after waiting anxiously to see whether they would have any ill effects the ship's cook decided they were harmless and joyfully filled one of the baskets. The only specimens that really interested Ato were of the edible variety. While he was thus employed, Tandy, an experienced climber by now, scurried up to the top of one of the sea trees, breaking off several branches so Samuel could press the curious leaves in his album. High above his head Tandy could see Roger chasing angrily after a flying fish, muttering with anger at his unsuccessful efforts to overtake the nimble little sea bird. In our own southern waters there are large flying fish that leap out of the water of the gulf stream, but the flying fish in this Nonestic Sea Forest were small, and where most fish have gills wore strong transparent wings. Their claws, somewhat like a crab's, made it possible for them to perch jauntily in the branches of the sea trees, and these strange little fellows could swim and dive as well as fly. Pulling out his pad, Tandy made a lively sketch of one in the tree opposite, for it did look as if Roger would never succeed in catching one. All morning Nikobo paddled calmly through the dreamy sea forest; Samuel making notes, Tandy sketches, and Ato catching in his long-handled nets plump little fish and crabs, and filling another basket with the small delicious clams that clung like barnacles to the slippery bark of the sea trees. In the shadowy center of the forest where the trees pressed closer together and great flat rocks stuck their heads out of the water, the explorers came upon several fierce sea lions. They were not smooth and shiny like the seals of our own oceans, but yellow and tawny with long yellow tusks, tufted tails and scaly manes. Their front legs ended in sharp claws, their back legs were shorter and their feet were webbed for swimming. Only the fact that Nikobo was larger and more frightening to the sea lions than they were to her saved the party from a savage attack by these malicious-looking monsters. As it was, they retired sullenly into the deeper shadows, snarling and roaring defiance as they backed away, but not before Tandy had made an effective sketch of the whole group. "'Tis a lucky thing for us that you're along!" grunted Ato, drawing his feet up out of the water and looking with grim disfavor after the snarling sea lions. "Likely as not, if you had not made that picture, Samuel would have tried to drag one along by its tail, regardless of our feelings or safety."