The Remorseful Day: The murder of Yvonne Harrison had left the Thames Valley CID baffled. The Wench is dead: The body of Joanna Franks was found at Duke's Cut on the Oxford Canal at about 5.30 a.m. on Wednesday, 22 June 1859.
When Axel deciphers an old parchment that describes a secret passage through a volcano to the centre of the earth, nothing will stop him and his eccentric uncle from embarking on a perilous, terrif...