The Doctor is forced to admit the truth, but Grover refuses to abandon his expedition on the word of people who claim to have travelled through Time. In order to prove his story, the Doctor suggests that Mike show Grover the “statue” in the pit, which the Doctor believes is in fact a dead alien in a life support suit. Upon arriving at the pit, the Doctor studies the statue for himself and finds a storage unit containing two Semquess drug vials and one empty space; he concludes that the third vial must have broken open in the past, releasing chemicals which resulted in the gigantism on the island. He intends to dispose of the other two, but before he can do so, Grover has his men hold the Doctor, Liz and Mike at gunpoint and seizes the vials, revealing that he came to the island in the hope that the cause of the unnatural growth could be tamed to grow back Amelia's missing arm. Nancy, who has been suffering from guilt ever since Amelia fell into the water, realises that this entire expedition was for Amelia's benefit and not her own, and in a fit of rage she lashes out at Amelia's self-righteousness—infuriating Grover and destroying herself in his eyes before she realises what she's done.