|One called Grimalkin sent us. He carries with him our progenitor, the first Iron Horse, and has compelled us to join you and your cause against the False Monarch. Out of our respect for the Great One, we have agreed.|
|— Spikerail to Meghan Chase in The Iron King, pg. 301|
Spikerail is an Iron Horse modeled after the original Ironhorse. He was the leader of his herd of iron horses who participated in the last battle in The Iron Queen. He is an ally of Meghan Chase's, Ash's, and Puck.
Spikerail is a smaller, sleeker version of the original Ironhorse, but large nonetheless. He is made out of black metal, with glowing red eyes and a mane and tail made out of wires.