CHAPTER FORTY FIVE As London Bridge loomed into view on the horizon, Oliver, Esther, and Ralph took it in turns to look through the spyglass at the far bank of the River Thames. Indeed, through the glass they could see the outline of two distinct metal arches, with odd glittering shimmers and lightning forking across their surfaces. They were identical, reminding Oliver of the porthole windows in submarines. “How do we know which one is the portal Michael told us about?” Ralph said, looking concerned as he handed the spyglass back to Esther. Then he gulped. “What if neither is?” Oliver checked his amulet. “It’s getting warmer the closer we get. So at least one of them has to be the way back to the School for Seers.” “Neither of them look particularly stable,” Ralph added. “The metal is

