Penshurst then feigned running , but at half speed , and , as the U-boat opened fire , sent off her boat party .
As Penshurst drew up to pick up Invercauld 's survivors , U-84 fired a torpedo at her , which was narrowly avoided .
Penshurst then feigned running , but at half speed , and , as the U-boat opened fire , sent off U-84 's boat party .
As Penshurst drew up to pick up Invercauld 's survivors , U-84 fired a torpedo at her , which was narrowly avoided .