But he had forgotten--and now the memory of it had flashed back to him--that a spirit had led him through the Vatican to the Pope.

He moved along the left-hand wall, near which he had stumbled against the great chair.

He was convinced that at the end of the Gallery he should find an exit, and light at last.

He did remember that, at the end, was the gateway leading to the Chiaramonti Museum.

He went on, often pressing his hand against the wall, against the tombstones.