In chapter 10: What makes Meg feel that there is "nothing left to hope for" ?

They see three grey figures moving across the field towards them. They seem like animals, except they walk upright. When they approach, Meg sees that they have not real faces, just tentacles coming out of their furry bodies. Meg begins to think that her father has killed them all by bringing them here. The creatures ask them what they are doing, and as Calvin tries to explain that Meg is hurt, one of the creatures reaches out to touch her with its tentacle. Soon, it picks up Meg and cradles her and tells Mr. Murry that it is taking her away.

Because Meg sees 3 grey figures moving across and she begins thinking that her Father died