It's not hard to find mention of it, but it's hard to the actual account. It's not on the Wikipedia.

>ancient christian father hiding on the outskirts of rome
>the friend of a kid of one of the people giving him refuge rats him out for a reward
>he goes willingly
>romans play good cop bad cop
>try to say, just sacrifice some animal to caesar, it can be a small one even
>won't do it
>they put him in a carriage and start the journey to the palace
>"bad cop" roman pushes him out of the carriage, breaks his hip
>Polycarp, the CHAD SAINT DOCTOR MARTYR just shrugs it off, gets back into the carriage
>they arrive, he is sentenced to be BURNED in the CIRCUS MAXIMUS
>but... there's no wood, they just had a mock naval battle and nothing burnable is there, not even animal straw
>the crowd at the Circus Maximus, many of whom are JEWS, RUSH to the surrounding shops and gather up firewood!
>they try to light him on fire
>the wood... won't burn!
>so they stab him
>he dies and a sweet smell is emitted
>fire still won't burn, followers take him away
it's amazing