(Review by Megan :D)
Cosmo is a teenage boy who desperately wants to try to save his Grandad from Alzheimer's, but things aren't looking too good. But one night, his Grandad gives him a mysterious key, that he says will unlock the South Gates of Blackbrick Abbey. Confused but curious, Cosmo ventures out to Blackbrick, and finds a time portal that goes all the way back to when his Grandad was 16, working as a slave at Blackbrick! Seeing the chance to get his Grandad's memory back, Cosmo stays at Blackbrick to find out some answers. He makes new friends and solves puzzles, then disaster strikes! Will things turn out all right for Cosmo and Grandad Kevin in the end?
I love the way Sarah writes this book: it's funny, mysterious, sad and clever and makes you never want to put it down! Time travel allways fascinates me, and this book uses it brilliantly! I would recommend this novel to 12+/13+ due to some bad language and other features.
A great book to me, 5 stars!