Entity 07-28 was referred to us by the [REDACTED] shelter in [REDACTED]. It had been collected on the street by local animal control and taken into care. Nothing seemed outwardly unusual about it until the following details were noted:

1. Entity 07-28 was mirrored from the usual internal anatomy of a dog, a fact which was initially believed to be a rare, but not unknown, condition known as situs inversus.

2. Entity 07-28 refused all food and water, and when force-fed, would vomit it up, undigested. This did not seem to have any effect on Entity 07-28’s overall level of health.

3. All attempts to trim Entity 07-28’s nails and hair have failed due to damage to the cutting tools. Those tensile strength measurements that have been obtained are “off the charts.”

For these reasons, despite otherwise seeming to be a normal canine, it is believed that Entity 07-28 hails from another, alternate, dimension, and that its strange traits are normal for creatures from said skein. It has been confined for observation, but given regular walks as it does not seem to be a danger to itself or others.