An impossible tale of two brothers

Ever wondered about Finnian's past ?
Before the experiments and his name changes
Before he was rescued by the Earl and his butler.
What was it like for him as a child?
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Ever wondered what Dagger's past was like?
How hard it was for him as a child with one leg
Before living on the streets and joining the circus
What was it like for him as a child?
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Ever seen similarities between these two boys ?
They have a few of the same features .
And both their pasts and names are unknown.
They seem close in age though.
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Have you ever wondered about the possibilities
That they might be brothers ?
It may seem impossible but yet
The story shall be told.