150 pages
English language
Published Nov. 19, 1999 by Dutton Children's Books.
Boltzmon!
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A boltzmon, remnant of a black hole, materializes in eleven-year-old Chris's bedroom and transports him to a parallel world, where he encounters the bitter woman his overbearing older sister will become, after his death, if he cannot convince her to change.
Subjects
- Brothers and sisters -- Fiction.
- Space and time -- Fiction.