Deposited on the stoop of Gwen's houseboat is a sizeable bronze weather vane, styled only as obnoxiously as Viktor could personally handle, in an occult sort of way, as to befit the boat's moderately menacing cottage vibe. A sharp-pointed feather quill marks the direction of the wind. Topping it off is a simple eye with lashes like sun rays and a pupil of thick gold-yellow glass.
The note:

To be installed on a calm day — if we can catch one.
V.

In her mailbox she'll also find a little marzipan nug.