"Heart of Darkness", a story in comic form, initially saw publication within Star Wars Tales 16 and later found its way into the anthology Star Wars Tales Volume 4.
A team of Jedi knights have been given the task of tracking down and neutralizing a number of Dark Jedi. Their assignment brings them to a trading post operated by the Commerce Guild. A Jedi named Minch manages to locate a Dark Jedi and boxes him in. Drawing his lightsaber, Minch tries to defeat the Dark Jedi in battle. During their fight, the Dark Jedi tries to provoke Minch by insulting him, calling him a Padawan and "Little One." This tactic appears to be effective, as Minch is knocked down. Fortunately for Minch, four other Jedi arrive quickly, but the Dark Jedi impales himself with his own lightsaber. Minch is left with feelings of anger and shame for failing to defeat the Dark Jedi on his own.
Subsequently, the Jedi receive a communication from allies observing the trading station, who inform them about a small ship taking off. The Jedi rush to their starfighters and try to contact the other ship, believing it is piloted by the Bpfasshi Dark Jedi Master.
They pursue the ship closely and attempt to make contact again. At that point, the ship changes course and heads towards the planet Dagobah. Eager to redeem himself for his defeat by the Dark Jedi, Minch disengages from the group and ignores orders to return, chasing after the Bpfasshi master.
While descending, Minch's ship is struck by lightning and crashes in a swamp. Disregarding further instructions to remain where he is, Minch pursues the fleeing Bpfasshi master into the planet's dense vegetation.
Minch trails the master into a cave underneath a tree. Upon entering the cave, the Bpfasshi Master labels him a 'Child' who is 'small and weak, full of fear and anger.' Annoyed by being called a small, weak Jedi, Minch jumps at the Dark Jedi Master, shouting "SIZE MATTERS NOT!" After blocking the initial attack and using his own strength against Minch, the Master states plainly, "As you can see size does matter."
Enraged, Minch swings his saber at the Bpfasshi, who then seems to split into hundreds of smaller versions of himself, which swarm onto Minch. He frantically slashes around with his lightsaber as his vision fades. Waking up moments later, he finds the Master lying against the cave wall, wounded and bleeding. The Master tells Minch "...you will make a great addition... to the Dark Jedi... one day..." before dying. Reporting to the other Jedi, Minch declares, "Complete is our mission." He heads to the ship that has arrived to take him from Dagobah and thinks to himself "Away from this cursed place, the sooner the better." Meanwhile, the Dark Jedi Master's blood seeps into the cave floor.