what do the children do when they realize they are lost?

The children realize that they are lost, but then notice a beaver gesturing for them to be quiet. Lucy says, "I think it's a nice beaver," but Edmund - always the skeptic - responds, "Yes, but how do we know?" Susan says that there is little to do but risk following the animal into an area surrounded by a thick curtain of trees... He tells them that Mr. Tumnus had gotten wind of his imminent arrest and had brought Mr. Beaver the handkerchief for safekeeping. Mr. Beaver then suggests that the children follow him home to seek shelter and eat some dinner.