Other mistake: When one of the agents is ambushed by the Tooth Fairies he is reduced to a skeleton, with his teeth still visible. However, it was earlier stated that Tooth Fairies start by eating the teeth, then finish off the rest of a body.
Other mistake: Dating back to the first Hellboy movie, we know that Abe Sapien has very prominent webbing between his fingers (extending almost to his fingertips). However, in the Troll Market scenes from Golden Army, Abe is wearing snug, full-fingered human gloves, which should be impossible with his webbed fingers.
Answer: "In Memoriam" by Alfred Lord Tennyson.
Tailkinker ★