Gallantry in Action is the first installment of the Jonah Halberd Series by John J. Spearman. A sci-fi military novel set in space, the book follows Captain Jonah Halberd, newly assigned commander of the spaceship HMS Cumberland, an advanced cruiser in the Royal Navy of the Commonwealth, currently under the reign of King Edward XII. There is an ongoing war between the Commonwealth and the Rodinan Federation. After rescuing Lady Julia Hawthorne, the fiancée of First Space Lord Chesterfield, Jonah and his crew set off for yet another dangerous assignment. But an ensuing battle with the Rodinan armada causes heavy casualties, and Jonah finds himself captured by the enemy. A daring rescue led by Lieutenant Commander Fred MacMurray results in Jonah receiving a hero's welcome back home. Now, he must unite the Coalition for war.

The continuing adventures of Captain Jonah Halberd, Royal Navy of the Interplanetary Commonwealth. Join Captain Halberd in the Commonwealth's fight against the Rodinan Federation. A thinker as well as a man of action, Halberd finds ways to improve his odds when he finds himself 'In Harm's Way.'

The third installment of the adventures of Captain Jonah Halberd, Royal Navy of the Interplanetary Commonwealth. Join Captain Halberd in the Commonwealth's fight against a new enemy. Readers have said of the earlier "Great read of science fiction", '"The story really flows and anybody who loves sci-fi naval action in space will certainly enjoy this story" and "The two books (Halberd 1 & 2) are very well written"

The fourth in the series of books detailing the adventures of Jonah Halberd, now an Admiral in the Royal Navy of the Inter-Planetary Commonwealth. Tragedy, loss, danger, excitement, a new love and a new beginning accompany our hero.