Sonic the Hedgehog #93
Writer(s): Karl Bollers
Penciler(s): James Fry
Inker(s): Andrew Pepoy
Sonic returns to Knothole and finds himself in hot water because of the missing Sword of Acorns! Angered by the frosty reception, he hastily leaves with Tails, Rotor and Mina. Sonic blames himself and can’t stop thinking about the sword. And Robotnik is also angry over the lost Sword of Acorns, terrified it will get in rebel hands and actually restore free will to those he’s imprisoned. The facts don’t stop Robotnik, however: he pretends to have the Sword in a nefarious plot to hoodwink the newly arrived Overlanders…
There ya have it.
Source: Worlds of Westfield