The label for the forth installment in Glenfiddich Experimental series has popped up in TTB database and is called Fire & Cane.
This is a peated Glenfiddich spirit (most likely 22 ppm) that was finished in Rum casks (like the 21 Year Old Reserva Rum Cask Finish). This label partially surprised me as I expected a PX finish to be #04 but I not truly surprised from the appearance of a peated Glenfiddich in the series as I predicted it following the visit of Struan Grant Ralph, Glenfiddich Ambassador, a few months ago (See my in depth review of Glenfiddich XX)
Previous editions in the Glenfiddich Experimental series were: IPA finish, XX Project and Winter Storm.