Compare Singularity by William Sleator, Mass Market Paperback | Indigo Chapters

Identical twins Barry and Harry Krasner are house-sitting at their great-uncle's Midwest farm. It's peaceful at first, but soon they realize there's something about the farmhouse that makes locals stay far away. The twins are sure that the locked shed out back is their reason why – but what they find there is more shocking than anything they could have imagined. | Singularity by William Sleator, Mass Market Paperback | Indigo Chapters