by S. Dorman
Slipping into an alternate universe, the FivePoints 2017 neighborhood gang are transformed into dark matter. Adventures ensue, including ghostly encounters with kids of the alternate SiXPointz neighborhood. The 2017 gang help to uncover secrets of crime and science in the city of HiTopOlis. They wonder if they will remember their adventures--if only they can figure out how to return home. Sequel.