Obey Gary's order and keep the secret room secret
From Create Your Own Story
"Okay," you say. "I'll keep your secret."
"Good," says Gary. "Now get back to bed. You need your sleep."
You continue working in the lab over the next few days, trying to forget about the secret room, hoping that something will turn the tide of this war. But it is not to be.
One day, a vampire raiding party discovers the secret entrance in the barn. Although the soldiers are able to wipe out the vampires before they can inform their allies about the secret base, your allies suffer heavy casualties. One of the fatalities is Gary. The secret of the locked room dies with him. You just hope whatever was in there wasn't critical to defeating the vampires.
THE END