Siamese: how to get the pet in WoW Forever
Siamese is a companion pet from Classic that returns in World of Warcraft: Forever. You learn it from 
Cat Carrier (Siamese).
Cat Carrier (Siamese)Use: Teaches you how to summon this companion.Right Click to summon and dismiss your cat.
In short
| Item | Cat Carrier (Siamese) |
| Source | Drop: Cookie |
| Where | The Deadmines |
| New in Forever | no, from Classic |
| Account-wide | yes, according to Wowhead |
How to get it
It drops from Cookie in The Deadmines.
What changed since Classic
The item now teaches the pet: it becomes a spell and no longer takes a spot in your bags. Summoning it is instant instead of a 1 second cast, with a cooldown of 1.5 seconds.
Wowhead’s database marks the pet as account-wide: learned once, it would be there for every character. Blizzard has not confirmed that itself.
More pets in The Deadmines
Every pet of WoW Forever, with where it comes from, is in the pet guide.
Frequently asked questions
How do you get Siamese in WoW Forever?
It drops from Cookie in The Deadmines.
Is Siamese new in WoW Forever?
No. Siamese was already in Classic and returns in WoW Forever.
Sources: Wowhead