1. What does Heat tell the assistant commissioner that the coroner suspects regarding the fatality at the Greenwich Park explosion?
(a) That the person killed is the older, stocky male and the other individual left the scene prior to the explosion.
(b) That the person killed is the fair-haired female and the other individual left the scene prior to the explosion.
(c) That the person killed is the fair-haired male and the other individual left the scene prior to the explosion.
(d) That the person killed is the thinner, dark-haired male and the other individual left the scene prior to the explosion.

2. When asked by Ossipon to describe the person who purchased the device, what is the professor's response?
(a) He provides Ossipon a surname.
(b) He provides Ossipon a first name.
(c) He provides a detailed description.
(d) He provides a vague description.

3. Although initially insisting he works independently, the professor eventually confesses that he recently had sold what?
(a) A bomb concealed in a lunch basket.
(b) A bomb concealed in a backpack.
(c) A bomb concealed in a briefcase.
(d) A bomb concealed in a varnish can.

4. Whom does Mr. Vladimir propose Mr. Verloc enlist in order to accomplish Vladimir's bomb plot?
(a) Mr. Verloc's family.
(b) Former military explosives experts that Mr. Verloc knows.
(c) Mr. Verloc's International Red Committee friends.
(d) Other secret agents that Mr. Verloc is acquainted with.

5. In which year does the actual incident on which this novel is based take place?
(a) 1948,
(b) 1949.
(c) 1894.
(d) 1889.