OK so I lost a kitten, but I want to know how to save one so one doesn't die again. Does anyone have a idea?

We need more details.

Save from what? Where's the mother? How old is the kitten? Is there something wrong with the kitten? How did you end up with the kitten? Does it need bottle fed? Is it able to relieve itself without help? Are it's eyes and ears open and clear? Is it the only kitten you have to care for? Have you taken it to a vet, if there's something wrong with it?

Well... how did you lose it? Did the mommy kill it or did it just die?