Voyage to Morticas(2016)
(The fifth book in the Warlock's Child series)
A Novella by Paul Collins and Sean McMullen
Although Dantar is able to shapeshift into dragon form, he still thinks like a rebellious teenager. His sister Velza has been given the ultimate gift by the dragons of Dracondas - the mind of a dragon. Now they must combine their gifts to stop the most powerful warlock of all time from casting his doomsday spell.
Used availability for Paul Collins's Voyage to Morticas
April 2016 : USA, Canada, UK Kindle edition