New Grepolis event presents you with Democritus’s magic cauldron. I want to build a place where you can quickly search for needed recipe. I will add recipes below, first being the ones i found most useful.
Collect ingredients by completing Island Quests, then combine three of them and throw them into Democritus’s magic cauldron. What will be your reward? This can be everything from silver coins to units, defense buffs or additional population!
You can find all about ingredients here, and all rewards here.
Most useful recipes will be added below, let me know if you want some specific recipes.
Recipes 1 (Harpies, Minotaur, Centaur, Erineyes).
Recipes 2 (Population, Construction, Recruitment, Movement).
Recipes 3 (Slinger, Horsemen, Hoplite, Swordsmen).
Recipes 4 (Myrmidon Attack, Troyan Defense, Improved Attack, Improved Defense).
Enjoy!
Grepolis Game Guide 
So, when does this start??
It was event for the past Halloween, i guess for the next we will have a new one.
For 2014’s event I found that 3 x Ambrosia gives you a permanent 100 land expansion. Any other recipes?
Is there a recipe for Hydra reinforcement?