i dont know what it is , but i cant seem to budge the ground in any direction.-besides ive got to rest a few minutes.-ill come up there on the little ridge and sit down and try to figure out something.-johnny was walking as he spoke and then as he took the second step after extricating himself from the hole , he tripped over something and landed on his stomach.-when he laughed and tried to push himself back to his feet , his hands seemed to sink beneath the surface.-then the earth simply gave way beneath him and suddenly he was falling several feet below the level of the ground.- chrissy screamed and scrambled to the mouth of the gaping hole johnny had fallen through.-johnny , are you all right ? -what happened ? -her voice seemed to echo hollowly as she called down to him.-stay back , candy ! -you , too , andy ! -johnny , answer me.-are you okay ? -chrissy was almost crying .