[fixed] last lesson wasn't accessable as pointed out by ezsh

locations/tatiana_lab.qsrc

@@ -457,7 +457,7 @@ if $ARGS[0] = 'Tatiana':
 	gs 'spellList', 'teacherActions', '$basicSpells', 'tatiana_lab', 'Tatiana'
 	gs 'spellList', 'teacherActions', '$healSpells', 'tatiana_lab', 'Tatiana'
 
-	if tat_lesson_number < 8 and pcs_mana >= 1000:
+	if tat_lesson_number <= 8 and pcs_mana >= 1000:
 		act 'Are there other spells you can teach me? (1:00)': gt 'tatiana_lab', 'teach'
 	end