The erstwhile hero of Bullfrog Grows Up is ready to build himself a house--""But he wasn't quite sure where to start."" Enter girl frog Gertrude, who eats just as much of the picnic lunch and, thus (the implication is), can be trusted to know just what Bullfrog should do about building the house. And indeed, as Bullfrog tells her, she thinks of everything. But when the welcome mat is finally out, does Bullfrog really have everything he needs? Helpful, hopeful Gertrude holds her breath--and so do you--until her absence reminds him of what he's missing: ""I just wondered if you would care to. . . play cards."" And back they go to the house where, of course, ""they were very happy. . . from then on."" A little slow, a little loose at the start (perhaps too oblique?), lovely when Bullfrog builds himself, first, ""A diving board on the frong porch!,"" and near enough to sad (as few young stories are) to live happily ever after.