The Great God Gold by William Le Queux

While Professor Griffin had been so busily engaged deciphering the concluding portion of the secret record, a strange scene was in progress at Sir Felix Challas's, in Berkeley Square.

First, Jim Jannaway had arrived and had held a short consultation in the library with the red-faced Baronet, afterwards quickly leaving. Then, from the Waldorf Hotel, summoned by telephone, came old Erich Haupt, bustling and full of suppressed excitement.