Summer in Orcus

Absolutely gorgeous portal fantasy. It walks in on gentle steps and charms you with lovely characters you'd be proud to call friends, and leaves you feeling wistful yet satisfied. You still want more, of course, as you always want more of anything that's delicious, but it was a full meal and a dessert, and you are satisfied with the generous portions you received. But I want a sequel. Until then, I shall dream of portals and hoopoes and wolves, and little birds with bowler hats.

Terry Pratchett's and China Mieville's love child.