"When in December" by Kendra Mase is a captivating exploration of love, grief, and rekindled joy that manages to both heart-wrench and uplift its readers throughout its finely woven narrative. Mase, a deft storyteller, offers a book rich in characters that feel profoundly real and a plot that entices with its emotional depth and beautiful prose. This novel is one for the lovers of romance that transcends simple happy beginnings to delve into the deeper, sometimes darker realms of affection and human connection.

The story unwinds in a quaint little town draped in festive cheer, but the core of its narrative beats to the sorrowful yet hopeful life of Sarah Tilman. A young teacher grappling with the fresh grief of losing her beloved husband, Sarah’s journey through mourning is drawn with immense care and authenticity, making her a protagonist that resonates deeply with anyone who has experienced profound loss. The essence of the narrative is Sarah’s confrontation with her sorrow during a time of universal joy, which Mase depicts with a tender yet unflinching hand.

Enter Jameson Clark, a childhood friend who returns to the town just as the winter festivities are mounting. His reentry into Sarah's life is not just a reunion of old friends but an intersection of past pains and present possibilities. Jameson, who has his own share of past scars, is depicted with layers that unfold elegantly through the narrative. Mase beautifully captures the hesitancy of rekindling old relationships, the fear of opening up old wounds, and the deep, sometimes irrational hope that accompanies human connections.

The allure of "When in December" lies not just in its main characters but also in its ability to paint the supporting cast with strokes just as detailed and colorful. From Sarah's inquisitive students to her protective older sister, each character adds depth to the narrative, weaving into the town's tapestry of communal life and individual stories. Mase’s brilliance shines particularly in her ability to craft dialogues—realistic, sharp, and sometimes painfully honest. They are the vessels through which the story flows smoothly, carrying along its themes of love, redemption, and new beginnings.

A distinctive feature of Kendra Mase's writing is her poetic attention to setting. The town, with its snowy landscapes, glowing lights, and warmth of holiday preparations, almost becomes a character in itself. It serves as a stark contrast to Sarah's internal wintry despair, but also as a nurturing background where healing begins. The descriptions are vivid, often picturesque, drawing readers into a sensory experience that complements the emotional journey of the characters.

The thematic heart of the book is the intricate dance between holding on to the past and moving forward towards the future. Mase does not simplify this process; rather, she presents it with all its complexities. The story acknowledges that grief is not a straightforward path and that love does not cure all wounds instantly. However, it also champions the human capacity to find joy anew, suggesting that renewal is not just possible but inherent to the human spirit.

"When in December" might tread the well-worn paths of loss and love in the realm of holiday romance, but it does so with a freshness and sincerity that is deeply engaging. The novel’s conclusion, avoiding clichéd resolutions, offers a resolution that is thoughtful and satisfying. It respects the jagged edges of real life, while still providing the emotional payoff that readers of this genre cherish.

In conclusion, Kendra Mase's "When in December" is a masterful blend of poignant storytelling and relatable characters embedded in a setting that calls to the heart. It is a reminder of the painful beauty of life—of how the depths of winter can still be pierced by the warmth of renewed love. This book is recommended for anyone who enjoys stories that are as contemplative as they are heartening, for anyone who believes in the power of second chances—not just for love, but for life itself.