Youarewelcome's Comments

I found one at 72.33, 29.26. While searching for this particular battle pets, i encountered lots of level 1 non-battle pet creatures with the same name which i killed when I saw them. Maybe that helped spawning one in the end, but I'm not sure.

I found this on wowhead from a user called DragonsAfterDark:

  "To see the Pale Baby Vorquins you need to head to Camp Antonidas, then click on a book called the Magical Creature Manual in the pavilion at /way #2024 45.86, 38.30 Magical Creature Manual (Pale Baby Vorquin)

Once you click on it, you'll get a 5-minute buff called  Sight of Elusive Vorquin.

The book became unclickable for my character, so there appears to be a CD on it."

That worked for me.