Udrapha's Arcane Vault

You create a container held by a magical seal around an object no larger than 10 feet on any side. The container can be of any appearance you wish, such as a glass box or a metal orb. When you cast the spell, you may create a passcode that opens the container. It cannot be opened by normal means. 

At higher levels. When you cast the spell at 7th level, you can make the vault appear distorted when viewed through spells and magical effects, such as Scrying. At 8th level, you can make the vault and the object inside appear nonmagical to spells and magical effects, such as Detect Magic. At 9th level, the vault cannot be dispelled through spells and magical effects, such as Dispel Magic, however such a spell cast at 9th level, or the Wish spell, is able to dispel the vault.