Part of Legacy of Prometheus Universe. Happened after the event of recruiting the alchemists in Act I. Written for Sunshine after the Snow contest.

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Spring of the 30th year under the reign of the Nameless Emperor.
An endless winter is over, and the battle inside the Alchemist City has come to an end.
While the Draconians took the survivors away as part of their "secret weapon" project, generals of Duchy of Aisleen had to think of a resolution regarding the eventual fate of this empty city.
After a time, they finally decided that another tree of eternal life shall be planted in its heart, replacing what they perceived as "a hub of all evils". Little did they know, however, none of them had a powerful solvent to accelerate its growth, which can be only found inside the ruins.
Receiving another seed of the tree from her subordinate, Aisleen thought something herself, and nobody knew what's happening in her heart.
After a while, signalling her righteous sisters to come along, Aisleen went inside the now-abandoned academy. There, they managed to find little of whatever left - the Draconians have looted almost everything valuable.
Nevertheless, they kept on searching every whereabouts. And the result came into fruition...
Looking through a small table, they spotted a suspicious thing. It was found out to be a secret trapdoor, they guessed.
After a lot of effort... Aisleen and her sisters got to see a never-seen-before scene. A spacious arborteum with everything they really needed right now.
They saw an unfinished research table, where a newly-finished potion has been spotted, along with its required reports. Of course, the mystery of whom made this miracle would never be known to all.
With the potion obtained, the party left the arborteum, while Aisleen's husband would stay here to recouperate after a lot of injuries sustained.
After a few months with the seed enhanced, the ruined Alchemist City has been transformed alike to nature, and returned to the hands of Aisleen this way. From now, a event for spring solstice has been recognized by the populace from the surrounding lands, and it remained this way even after the mainland changed hands many times. It eventually became legends that shall never be forgotten, from season to season.