I've got a question for someone who knows their Inhuman/Cosmic continuity.

At the end of Inhumans Vol 3 the Inhuman Royal Family (Black Bolt, Medusa, etc.) is exiled from Attilan, and the rest of the Inhumans leave in the city/spaceship to tour the universe. Then, in Fantastic Four Vol 3 #51-54, the Inhuman Royal Family return to the Earth, only to be banished by the UN to the Blue Area of the Moon. The next apperance of the Inhumans that I can find is Inhumans Vol 4, which opens with the Royal Family living in Attilan, along with the rest of the Inhumans, in the Blue Area of the Moon.

So here's my question: Does anyone know of any where that it is mentioned when Attilan and the rest of the Inhumans return from wherever they went?