BookList:

Grades 6-9 The British teen spies from The Shadow Project (2009), gifted with powers of astral projection, gear up for another mission, this time traveling back in time. It’s a convoluted web of logic that gets them to 1962 Moscow to halt a deadly outbreak of the Black Death imported from the fourteenth century, but their run-ins with the KGB are the stuff of classic spy thrillers. Curiously, the action is far more subdued in this sequel than the first book, but the zippy pacing and some tasty paranormal brain-candy combine for an ultimately enjoyable read. — Chipman, Ian (Reviewed 02-15-2011) (Booklist, vol 107, number 12, p76)