[77 p.] :ill.
"A Stepping Stone book."
Seven-year-olds Bradley, Brian, Nate, and Lucy make observations and gather clues that convince them that their older siblings, cousin, and animals have been captured by hungry space aliens.
Reading level : 1.8 ; 006-009
1.Practical jokes--Fiction.2.Extraterrestrial beings--Fiction.3.Twins--Fiction.4.Brothers and sisters--Fiction.5.Cousins--Fiction.6.Detective and mystery stories.Dynamic Details