We saved your life, you did not reveal our existence.

In late 1998, the Russian government agreed to reveal the existence of the project.

As a final instruction, do not reveal the existence of time travel.

This is the first time Robin reveals the existence of a brother.

The final two pages reveal the existence of the Monitors.

However, the Navy kept this classified for many years and only recently revealed its existence.

Tomorrow we're going to reveal its existence to the media.

Had taken place within a day or two of Solace's revealing her existence to us all.

With his son he revealed the existence of strong magnetic fields in certain stars.

"I am assuming that you do not want to reveal our existence, Captain?"