A Ghastly Shade of Green by M.D. Spenser

BE VERY AFRAID OF GREEN!!! Jason's mother takes him and his little brother on a vacation to Florida. ... Instead of the beach, they go to the edge of the Everglades. Alligators bellow and plants grow so think they almost blot out the light. This is not fun! Jason does not like this place at all. Then the really weird things begin. ... Keepsakes disappear from his dresser. His beagle winds up missing. Jason suspects burglars, but the truth is more frightening. And Jason must make a desperate effort to save his family -- and himself -- from THE TERROR OF THE GREEN.