Can you save his life?

You had just uncovered Kira’s identity, accidentally of course. You walked in on Misa and light discussing who they should kill next, they had the death note laying clear on the table. They, of course, noticed you. they force you into silence by threatening L Lawliets life. Light made it very clear that if she said a single word every detective on this case would die. He also told her he was about to kill L soon anyways, unless of course, you can make him to drop the whole case and stop searching for Kira