Jack and Gwen are back in this dynamic follow-up to The Lost Property Office.
Itâs been a year since Jack Buckles discovered the Keep beneath Baker Street, an underground tower no Section Thirteen was ever supposed to see; a year since his dad fell into a coma. Nothing has been the same since. Jackâs tracker abilities are on the fritz, Gwenâs not speaking to him and, whatâs worse, thereâs a pounding voice in his head calling for âthe flame.â
Then, Jack and Gwen are framed for the theft of a historic crown jewelâthe Black Princeâs Ruby, one of three cursed rubies said to bring knowledge, loyalty, and the command of nations to whomever wields them all. Now, they must retrieve the other jewels before the true thief does, or risk unleashing a reign of terror unlike anything historyâs ever seen.