from Comic Vine
When Peter Parker was bitten by the radioactive spider that gave him his powers, it managed to bite another before dying. This woman, hidden for years by Ezekiel from Morlun, has been found by Spider-Man… and is the new spider woman known as Silk!
Thirteen years ago, during a demonstration on the use of radioactive rays at a science exhibit, a spider was accidentally exposed to the radiation and absorbed large amounts of it. In its dying moments, the arachnid bit the nearest living thing to it, Peter Parker. As a result, the young teenager would gain amazing powers and become the amazing Spider-Man!
However, this was not the end; as mere moments after biting Parker, the spider bites another young student by the name of Cindy Moon.
Soon after, Cindy’s abilities manifested but she was unable to control them. Some time later, Ezekiel would approach the Moon family to offer his help and guide Cindy in controlling her newfound abilities. After six years since getting bit and training to use her powers, Cindy is locked up inside a facility by Ezekiel to protect her, and the other “spiders,” from Morlun.