Murder at Newstead Abbey — Joan Smith

The Berkeley Brigade (Lord Luten, Corinne deCoventry, Coffen Pattle and Sir Reginald Prance) have come to Byron's Newstead Abbey to celebrate Christmas. But Pattle finds a long-buried body on the estate's island and the Brigade is intrigued. Suspects aplenty: the odd local vicar, the mysterious Vulch and his missing wife, Sir William and Lady Richardson who arrived in the neighborhood before expected -- and rumored ghosts at the Abbey.  [7th of the Berkeley Brigade Mysteries] Regency Mystery by Joan Smith; originally published by Belgrave House/Regency Reads