Alice finds herself tumbling into the Country of Diamonds without warning—and without anyone who recognizes her, except Nightmare. The familiar cast has been reshuffled: Nightmare and Ace are children, Dee and Dum exist only as adults, and Vivaldi, Gowland, and Pierce have vanished entirely. In their place are Diamond Queen Crysta Snowpigeon, a black-rabbit prime minister named Sidney Black, and Dodo-bird mafia lord Jericho Bermuda. Alice must untangle what happened to this world and why every heart here is as cold and distant as the gem it is named for.