With the Chamber of Eternity secure, Otto must now recover the second piece of the Immortality Engine.<br>
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But that task will be far from easy.<br>
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For the second piece, The Heart of Alchemy, lies far to the east in the fabled Celestial Empire.<br>
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Assassins, undead, monstrous beast, and demon worshippers all stand between Otto and his prize.<br>
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And even more daunting, Valtan, the last living arcane lord, is determined to stop him. The cost be damned.<br>
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Can Otto overcome the forces arrayed against him and take the next step down the road to immortality?<br>
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Find out in The Heart of Alchemy, the sixth book in the Portal Wars Saga.