It's Tuesday 2nd March, about 4 o'clock in the afternoon, and I've got my first appointment to meet the owners ofthe Aqueduct Spring source that we announced in January.
I'm kind of scared and on-edge, and I've asked a representative of the local archaeological society to come with me.
The old Spriral Staircase curls down for twenty-five metres into the eery space beneath the city of Rome, where archaeology and ancient tunnels have laid undisturbed since a forgotten time.
Peering down from the top as we prepared to film the aqueduct, we saw the shimmer of the purest water rippling yellow-gold lights right in the centre of the stairway where the ancient Aqueduct passes beneath.