If you didn’t have the chance to snatch up a free Infernium Dwarven Spiderling pet the last time it was offered, now is your chance to finally claim this free reward by opting in to receive marketing emails. Note that if you’ve already received this free pet the last time we offered it, you are not eligible for this offer.
Official Announcement
EN (US): https://www.elderscrollsonline.com/en-us/news/post/59515
FR: https://www.elderscrollsonline.com/en-gb/news/post/59515