Answer: Out of season growth is not normal, but it's more common than you might expect. Spring flowering bulbs often erupt at peculiar times, mostly because they've gone through their necessary resting period and are so exhuberant they can't contain themselves. They may develop flowers this fall or they may just stop growing until the weather gets really cold. I'd leave them as they are (cover them back up with the same amount of soil as they had over them before), and wait to see what happens. Bulbs will only bloom once and then will need a resting period. So, if yours produce flowers this fall, they probably won't flower again in the spring. Then again, who knows? Your bulbs seem to be quite eccentric!
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