Tywins Shared Vault

You conjure a special pocket space for storage and connect it to each of the containers used in the casting of the spell. When you finish casting the spell, you permanently create a pocket space, which is 5x5 foot in volume. An item placed through one of the containers can be retrieved through any of the containers. Furthermore, these containers count as Bags of Holding for all other purposes.

If a container used in casting of the spell is targeted by Dispel Magic, its connection to the pocket space is severed. You can connect other containers to the same pocket space, as long as one of the containers used in the spell casting is connected to it. Finally, a single container cannot be connected to multiple pocket spaces created by this spell at once.