A missing girl...

The manipulative aristocrat, Marcus Dreadbury.

A local gangster with a drug-dealing problem.

The Manor's locked room, with a dusty handle.

Stables, but with no sign of any horses.

A subterranean stream.

Marcus' madcap father.

And a Manor-House full of surprises.

Trench and Old Tom must somehow make the connection, if they are to succeed at playing find-the-lady...