Piece by piece, inch by inch . . . nothing big is ever built overnight. A clue here, a memory there. . . that's all X has had in his search to discover who he is and where he's come from. But now, after more than two years, it all makes sense. Now, as he lay near death at the hands of Coffin, it all comes back to him. The pieces are in place and the puzzle is complete in this issue of X!
— Description from Comic Vine community (comicvine.gamespot.com).
