Record of the Guardians collection
Volume One contains books 1 and 2 of Record of the Guardians series.

Record One: Out of Reasons

One petit seamstress realizes her destiny is more than she planned. In fact, she's struggling with time itself. Meanwhile, the Guardian of Life magics and the Guardian of Death magics are battling with a foe unlike they've ever seen, twisting souls into madness and playing with long dead machinations.

Record Two: Out of Time

The Guardian of Death is still puzzling where his escaped foe has gone. Meanwhile, he is beset with another bizarre mystery that none of his comrades can decipher either. Dropped out of nowhere with no recollection of herself, this baffled lady tries seeking her unknown past, uncertain of her own innocence, or more likely guilt.