Enigmatology: The Strange Case of Professor Crowhagen

The year is 1921 Renowned Teesside archaeologist Professor Nathaniel Crowhagen has gone missing.
In the days before his disappearance the professor was unusually insular, locked in his study for hours on end he could be heard muttering of a “catastrophic gate opening” and “the sands of time running out”.
His family beside themselves with anxiety for his whereabouts have exhausted every avenue trying to follow his last known footsteps.
The police have drawn a blank with no concrete leads or proof of any wrongdoing.
With the arrival of a cryptic communication time is running out and the pressure is on.
The distraught family turn to you and your team of detectives to solve the mystery. Uncover the professor’s whereabouts and avert an event that will change history forever.