Set in 29th century a team of scientists hunting for the different types of higgs boson, an elementary particle responsible for giving some particles their mass, millions of billions of micro black-holes sporadically come in and out of existence in the searing tiny region of space where 2 beams of relativistic heavy ions traveling in opposite directions collided with each other inside the bubble chamber located along a Dyson's Ring 4, also nicknamed "Spear of Destiny" orbiting our Sun.
Prometheus, a titan whom according to legend was spared by Zeus in Greek Mythology has been waiting for this moment to seek the Elysium, a sacred place in which her siblings are locked up. According to her reliable Intel one has to wait for a tartarus to form, and then use the Excalibur, the only key in the universe capable of prying open tartarus. Tartarus is simply a micro black hole but forms when millions of them merged into one and lasts longer than usual, Prometheus teleported inside the bubble chamber and inserted Excalibur into the tartarus, she is capable of moving and thinking at speed hundreds of thousands time faster than any human.
The entrance to Elysium is opened at last, before Prometheus can enter a blinding light flashed and she was mortally wounded by an intense pulse of high energy Gamma Ray Burst fired from a towering entity, Zeus order a sophisticated terminator series T-1000B nicknamed "Thunderbolt Buster" to guard the holy place. However Kronus tears Thunderbolt into two with his bare hands and feeds Prometheus "Eilxir", a pill where the Chinese believes could grant user immortality but it was already too late and at this time the angry Titan roars...
My question is how can I fire a single shot equivalent to a GRB? Kindly apply magic sparingly and my story is actually intended for teens as there are no adult themes yet.