Realising that she must return to the present, Diana aims to complete her training.

As Diana and Matthew return to London, Diana learns news that could change everything. The Queen holds Matthew to account.

In 1590, Diana is transfixed as she tries to work out what the Book is telling her. Matthew worries over the Book's power.

Matthew and Diana go to Bohemia to search for Edward Kelley and the Book of Life. There, they encounter the strange Emperor Rudolf II.

Philippe makes a troubling discovery, provoking a conflict with Matthew. Ysabeau, Em and Sarah start to look for a message.

Matthew and Diana arrive in France on their journey to face Philippe. Elsewhere, Louisa and Kit cut a swathe through London.

Another vicious vampire murder rocks present-day Oxford. Marcus makes a breakthrough.

In the present, Domenico makes a disturbing discovery in Oxford. Back in 1590, Matthew must beg for forgiveness from Father Hubbard.

As she continues her search for a mentor, Diana meets wealthy alchemist Mary Sidney. London's vampire ruler demands fealty.

Matthew and Diana head to Elizabethan London.