Minor edits: Patronyms are gender-dependent, so "Evgeniya Petrovich" should be "Evgeniya Petrovna"
Also, link to pike in annotation is wrong, points to hen.wikipedia instead of en.wikipedia
On further note, Great Christmas Calendar Mix-up isn't in Witches' World, so no Christmas on 7 January because it's still 25th in old Julian calendar.
Generally, very nice side-story and elaboration for a start of great friendship. I need to reread it before making additional comments.