The Bureau has uncovered evidence of the impossible--an invasion from the dimension of matter. Pye sends four Explorers to stop the plot, but when they come of age at fourteen, they're already too late. Stranded in matter, they must devise a
plan to rescue the dimension of energy.
Under siege at the Academy,
Matter-Combat Professor Ruskin Fately
prepares a highly unusual defense of last
The Bureau of Dangerous Matter
(#2 The Last Days of Kerious Pye )