The Batcave

You decided to explore the most secret place of the manor, one of the most secret places in the world: the Batcave.

The quickest way must be becoming intangible and pass through the soil and rock, but you're pretty sure there are counters against that. Besides, going the official way had its own fun. After a long passageway hid behind an old clock, multiple verifications of handprints, retinal and voice, you came close to the place where Batman kept all his wonderful toys.

However, when you entered the cave, there was someone inside already.