After the outcome of the gas masks during WWI, the government knew there had to be improvements. Zajac was on the team working on said new gas masks. He had to run experiments on animals to test how the masks would work. Theo’s work was very stressful considering these masks were needed as soon as possible for the war and the conditions where he was working were not always the best. Theo’s work was similar to those involved and mentioned in Bomb by Steve Shienkin. Theo and those involved in Bomb both had to work under extreme pressure, were in a “race” to complete their warfare equipment quicker than the other country, and they both were using brand new, dangerous,