Three Generations.

There was a Toad, a Froglet and a Tadpole.
Together they shared blood and sometimes a home.
Over years Toad grew into a tadpole and Froglet was stuck.
As much as Froglet tried escaping from grasp of a froglet, 'twas impossible.
Tadpole grew older but,
one day Toad needed blood and blood came.
First was Froglet but left too soon,
then was Tadpole who never left.
Tadpole took care of Toad and Froglet.
But neither showed any sign of gratitude.
When angry Toad would turn into a goblin.
Goblin face and arms.
But when frightened he would cower into a gnome.
Froglet, stuck in the stage showed signs of froglet and tadpole and toad;
never really here, never really there.
Tadpole skipped the age of froglet.
His croak was beautiful, his riches were strength and kindness.
Oldest of the three, Tadpole saw Toad become a lump.
Sooner than expected Toad died and so did Tadpole'
his heart would beat but his croak ended.
Only Froglet remained intact, Tadpole was confined to his stump.
Froglet continued to drain Tadpole of the riches he held, his strength and kindness.
Then Froglet died and Tadpole was left alone.
Tadpole was alone, alone at last.
There was nothing left.
Froglet and Toad had left nothing for Tadpole,
so he died.