4th pet won't spawn

[nylliq]

i talked to the guy who needed the pets and found 3 of the pets yet when i go into the cave where the 4th pet is found it is no where to be seen. can anyone explain how to get the 4th pet to spawn?

[Stick]

Strange, there shouldnt be any particular condition to getting it to spawn, it should simply be there. try maybe speeding another save file to the area and see if the error is persistant?
I assume you followed a video to the location in the cave and are at the correct area at least.. in any case, your issue is an error.

[Chaosvolt]

There is a 90% chance the pet you're missing is the one in the general vicinity of being behind the wizard's house.

[rude entity]

theres a chance youve already collected that one and forgot lol. maybe youre missing another one? which ones have you found so far?