The Immeasurable Heaven: Nominated for the Philip K. Dick Award

The Race for Reality Has Begun. The galaxy of Yokkun's Depth has been settled since time immemorial. There is only one frontier left, and it's a one-way journey: to pierce the skin of existence and delve the countless younger universes beneath. Running through these universes is the fabled Well, a fissure formed in the distant past into which horrors have been flung for millions of years. Amongst their number was an impossibly ancient sorcerer, cast down to the wastelands of a thousand apocalyptic worlds, never to return. Until now. Whirazomar is crossing the stars in the belly of a sentient spore, hoping she can make it to the Well before her masters' rivals realise what she's hunting: somewhere far below them, a hapless explorer has drafted a map of reality. A map that the exile is sure to seek out. A map so valuable that a kaleidoscope of beings will run the gauntlet of every universe to get it, even at the cost of their lives.