This article or section contains information only featured in the RuneScape novel Return to Canifis, which is generally considered canon.

The Black Prince is a very prominent member of the Drakan family, and is a Vampyre Lord. He appears only once in the Return to Canifis novel and is yet to appear in game.

It is revealed that he was the one who sent Jerrod the werewolf over the River Salve to retrieve Gar'rth, and also sent the Wyrd, an unknown class of vampyre, most likely a vyrewatch, to weaken the holy barrier of the river in preparation for an impending invasion of Misthalin.

In Gar'rth's letter to Kara-Meir, it is revealed that The Black Prince is in fact Prince Tenebra, a prince of Misthalin that rode to war against Morytania centuries ago, and that he is Gar'rth's father. As vampirism is not inherited, and Tenebra was once human, this made Gar'rth half human, half werewolf, as opposed to half werewolf, half vampyre, which is why he was able to resist Zamorak for so long.

As a human, Tenebra was the eldest of The Five Princes of Misthalin who rode to war against the dark forces of Morytania centuries ago, where he was presumed dead after he went missing in battle. This would leave Gar'rth as the rightful heir to the throne of Misthalin, and with Gar'rth currently in his father's possession, Tenebra plotted to invade Misthalin, using several large siege machines built in the slums of Meiyerditch to take his place as Lord of both the Land of the Dead and of the Living.

When Gar'rth was under his watch, he forced Gar'rth to try and accept Zamorak and as a way of dealing with the Myreque. Throughout this time, his son tried and failed to kill him. When Gar'rth refused to kill the Myreque captives and tried to kill Tenebra instead, Tenebra imprisoned him with a dying girl and his old journals.

At the second Battle of the Salve, Tenebra released Gar'rth and marched with him and an army of zombies on the Paterdomus Temple. The zombies defeated the Misthalian army and were on the point of victory when Gar'rth and Kara-Meir used the Sunspear to attack him. He ran back to get reinforcements under Vanescula's command, but she refused to send them over, having intended for him to die all along. When Tenebra died, the zombies in the temple lost any form of coherence and were easily defeated.

He seemed to have some form of rivalry with Vanescula Drakan.