Ad blocker interference detected!
Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers
Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.
Cobalikbot Acorn Delta was a rogue robot that made illegal modifications to itself and posed a threat to the whole universe. It was imprisoned beneath a replica of the Eiffel Tower on the planet Cobaltikar 45 and held using the energy from the universal atmosphere – an energy drain that threatened to reduce the planet to dust. Acorn Delta was free for a short while because of the Eleventh Doctor's intervention before being trapped beneath the Eiffel Tower when it was weakened and collapsed on top of it. (COMIC: Tower of Power)