00779cam a2200217 4500 547097436 TxAuBib 20100322120000.0 081203s1985||||||||||||||||||||||||eng|u MNH TxAuBib Sleator, William. Singularity / William Sleator. New York : Bantam Books, 1985. 198 p. : Paperback. Sixteen-year-old twins Harry and Barry stumble across a gateway to another universe, where a distortion in time and space causes a dramatic change in their competitive relationship. 20100322. TEXAS LONE STAR 1990-1991. Twins Fiction. Science fiction. TXKDM