The Magician's Map (The House on Hoarder Hill #2)

Exploring the mysterious tunnels under their grandfather's house on Hoarder Hill, Hedy and Spencer discover the Fantastikhana, an underground tournament of magic. Here they find a group of powerful magicians called the Sleight and a mysterious living map, which tattoos itself onto Hedy's skin and seems to be directing her further underground. And so an extraordinary treasure hunt begins ...