There is a tradition in my house that when one of my kids hits the age of 10 we all watch the Dungeons & Dragons Cartoon together. This being my last round of watching with the family as a part of this tradition I thought it would be fun to convert some of the creatures and magic items for 5e. Enjoy.
Source: Dungeons & Dragons Cartoon – “The Box”
This item appears as a large purple trunk. It acts as the Well of Many Worlds except its position determines where in the multiverse it connects to. For example, in the shadow of skull Mountain would open to a particular place in a particular world or plane. Moving it 5 feet in any direction would mean it opens to a different place in the multiverse.