Helena Coggan is a writer and student based in London. She wrote her first novel, The Catalyst, at the age of thirteen; it was published by Hodder and Stoughton two years later, and named as one of 2015's Debuts of the Year by the Guardian and Amazon.

The second book in the duology, The Reaction, came out when she was sixteen. She has been called 'the next JK Rowling' by NBC's Today, and in 2016 she was named by the Guardian as one of the most influential teenagers in the world.

She is currently studying physics at university, for the sole purpose of building a TARDIS one day. The Orphanage Of Gods is her third novel.