The blood immediately sprung to life the moment the two had moved. The second they lunged at Lyle, they found themselves surrounded by spikes made out of blood. They quickly swung their hands and feet, using the chains that were on their feet as weapons to clash against the spikes, alas, they had entered Lyle's trap without knowing about it.
The spikes were numerous, not to mention the bottle of blood that Lyle had taken out the moment he sensed them move. He threw the bottle at them, forcing them to break it without seeing what was inside, and it was then that Lyle's trap was finished. Surrounded by spikes, the two couldn't move while the blood that splashed on them came to life, turning into strong ropes that quickly bound them.
The blood that Lyle had splashed on them was his own, he had placed his own blood in a couple of bottles so that he had a supply of it.